Zone 9a planting calendar

What to plant in March: zone 9a

Zone 9a averages its last spring frost around February 28 and its first fall frost around December 5. Everything below is timed from those two dates, so it stays useful whether you're planting for summer or for a fall harvest.

These are zone-average dates. Check an area-level frost estimate from thirty years of nearby weather history and this calendar retimes itself.
Last frost: February 28
First frost: December 5
Winter lows: 20 to 25 °F
Zone 9a Almanac. What growers here actually recorded: sowing weeks, days to first pick, and yields.

Direct sow

  • Bush beanaround Mar 7

    Soil is ready 1 weeks after last frost.

  • Cucumberaround Mar 7

    Soil is ready 1 weeks after last frost.

  • Soil is ready 1 weeks after last frost.

  • Dry Bush Beanaround Mar 7

    Soil is ready 1 weeks after last frost.

  • Sunflower (Seed)around Mar 7

    Soil is ready 1 weeks after last frost.

  • Summer Savoryaround Mar 7

    Soil is ready 1 weeks after last frost.

  • Boragearound Mar 7

    Soil is ready 1 weeks after last frost.

  • Shiso (Perilla)around Mar 7

    Soil is ready 1 weeks after last frost.

  • Anisearound Mar 7

    Soil is ready 1 weeks after last frost.

  • Epazotearound Mar 7

    Soil is ready 1 weeks after last frost.

  • Zucchiniaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Sweet cornaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Winter squasharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Basilaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Watermelonaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Cantaloupe / Melonaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Pumpkinaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Lima Beanaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Soil is ready 2 weeks after last frost.

  • Soil is ready 2 weeks after last frost.

  • Peanutaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Bitter Melonaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Soil is ready 2 weeks after last frost.

  • Honeydew Melonaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Butternut Squasharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Acorn Squasharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Spaghetti Squasharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Hubbard Squasharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Kabocha Squasharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Delicata Squasharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Patty Pan Squasharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Soil is ready 2 weeks after last frost.

  • New Zealand Spinacharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Grain Amarantharound Mar 14

    Soil is ready 2 weeks after last frost.

  • Buckwheataround Mar 14

    Soil is ready 2 weeks after last frost.

  • Sorghum (Grain)around Mar 14

    Soil is ready 2 weeks after last frost.

  • Popcornaround Mar 14

    Soil is ready 2 weeks after last frost.

  • Bush beanaround Mar 14

    Warm soil: first summer sowing of bush bean.

  • Cucumberaround Mar 14

    Warm soil: first summer sowing of cucumber.

  • Zucchiniaround Mar 14

    Warm soil: first summer sowing of zucchini.

  • Sweet cornaround Mar 14

    Warm soil: first summer sowing of sweet corn.

  • Basilaround Mar 14

    Warm soil: first summer sowing of basil.

  • Okraaround Mar 21

    Soil is ready 3 weeks after last frost.

  • Winter squasharound Mar 21

    Warm soil: first summer sowing of winter squash.

  • Beetaround Mar 28

    Warm soil: first summer sowing of beet.

  • Carrotaround Mar 28

    Warm soil: first summer sowing of carrot.

Transplant out

  • Anisearound Mar 7

    Safe to set out 1 weeks after last frost. Needs a long, warm, frost-free season to set seed; stake plants, as the thin stalks flop once seed heads fill out.

  • Tomatoaround Mar 14

    Safe to set out 2 weeks after last frost. Bury 2/3 of the transplant stem. Roots form along the buried stem for a stronger plant.

  • Pepperaround Mar 14

    Safe to set out 2 weeks after last frost. Pinch first flowers on transplants so the plant invests in roots before setting fruit.

  • Cucumberaround Mar 14

    Safe to set out 2 weeks after last frost. Trellis vertically to double yield in the same footprint and cut mildew.

  • Zucchiniaround Mar 14

    Safe to set out 2 weeks after last frost. One plant feeds a family. Pick at 6-8 in for the sweetest fruit.

  • Winter squasharound Mar 14

    Safe to set out 2 weeks after last frost. Cure 10 days in a warm dry spot after harvest. The skin toughens and storage doubles.

  • Basilaround Mar 14

    Safe to set out 2 weeks after last frost. Pinch flower spikes the moment you see them: leaves stay sweet all season.

  • Oreganoaround Mar 14

    Safe to set out 2 weeks after last frost. Harvest just before flowering for the strongest flavor. Dries beautifully.

  • Thymearound Mar 14

    Safe to set out 2 weeks after last frost. Needs sharp drainage. Plant in gravelly soil or a raised bed edge. Never wet feet.

  • Rosemaryaround Mar 14

    Safe to set out 2 weeks after last frost. In zone 6 and below, grow in a pot and overwinter indoors near a south window.

  • Sagearound Mar 14

    Safe to set out 2 weeks after last frost. Prune hard in spring to prevent woody stems and keep the plant productive for 5+ years.

  • Figaround Mar 14

    Safe to set out 2 weeks after last frost. In zone 6, grow in a pot and drag into a garage for winter. 'Chicago Hardy' takes zone 5 with mulch.

  • Watermelonaround Mar 14

    Safe to set out 2 weeks after last frost. Ripe = tendril nearest the fruit is brown and the ground spot has turned buttery yellow.

  • Cantaloupe / Melonaround Mar 14

    Safe to set out 2 weeks after last frost. Ripe fruit slips off the vine with a gentle tug. The smell alone tells you.

  • Brussels Sproutsaround Mar 14

    Safe to set out 2 weeks after last frost. This is a fall crop: frost is what turns the sprouts sweet. Around 4 weeks before harvest, top the growing tip so the plant pushes size into the sprouts.

  • Pumpkinaround Mar 14

    Safe to set out 2 weeks after last frost. Count back 100 days from your first frost to time a Halloween harvest. Cure cut pumpkins in the sun for 10 days and leave 3 in of stem so they store for months.

  • Celeryaround Mar 14

    Safe to set out 2 weeks after last frost. Celery is a water crop: it turns stringy and bitter the moment it dries out. Keep soil consistently moist and feed steadily. Homegrown stalks are thinner and far more flavorful than store celery.

  • Lavenderaround Mar 14

    Safe to set out 2 weeks after last frost. Lean, gritty, well-drained soil and no coddling. Plant on a slight mound, skip the fertilizer, and prune a third of the plant after bloom to stop it going woody.

  • Tarragonaround Mar 14

    Safe to set out 2 weeks after last frost. Buy French tarragon as a plant, never seed: true French tarragon rarely sets viable seed, and seed sold as tarragon is usually the near-flavorless Russian type. Divide the crown every 3 years.

  • Celeriacaround Mar 14

    Safe to set out 2 weeks after last frost. Needs a long, steady season: start indoors early and keep soil evenly moist the entire time or the knob stays small.

  • Peanutaround Mar 14

    Safe to set out 2 weeks after last frost. Flowers self-pollinate then push a stalk (peg) into the soil to form the pod underground: keep soil loose around the base.

  • Bitter Melonaround Mar 14

    Safe to set out 2 weeks after last frost. Pick fruit while still green and firm; left to yellow and split, it turns bitter to the point of inedible.

  • Safe to set out 2 weeks after last frost. Pick young for eating like a squash, or leave on the vine until the skin browns and dries for a bath sponge.

  • Honeydew Melonaround Mar 14

    Safe to set out 2 weeks after last frost. Unlike cantaloupe, honeydew doesn't slip from the vine when ripe; judge by a faint sweet smell and a slight give at the blossom end.

  • Butternut Squasharound Mar 14

    Safe to set out 2 weeks after last frost. One of the best keepers: cure in the sun 10 days, then store at 55F and it holds for 3-6 months.

  • Acorn Squasharound Mar 14

    Safe to set out 2 weeks after last frost. Ripe rind resists a fingernail poke and the ground spot has turned orange; harvest before frost damages the skin.

  • Spaghetti Squasharound Mar 14

    Safe to set out 2 weeks after last frost. Rind should be uniformly pale yellow, not white or green, before harvest; underripe fruit shreds mushy instead of stringy.

  • Hubbard Squasharound Mar 14

    Safe to set out 2 weeks after last frost. Needs the most space of any winter squash; give it a full corner of the garden or let it run into the lawn edge.

  • Kabocha Squasharound Mar 14

    Safe to set out 2 weeks after last frost. Cure 1-2 weeks after harvest; the starchy flesh actually sweetens in storage over the following month.

  • Delicata Squasharound Mar 14

    Safe to set out 2 weeks after last frost. The skin is thin enough to eat, so skip the long cure other winter squash need; use it within a month or two of harvest.

  • Patty Pan Squasharound Mar 14

    Safe to set out 2 weeks after last frost. Pick at 2-3 in across, like a baby zucchini: past golf-ball size the skin toughens fast.

  • Cucamelonaround Mar 14

    Safe to set out 2 weeks after last frost. Grows from a small tuberous root that overwinters indoors in pots north of zone 7; pick fruit at grape size for the best crunch.

  • Tomatilloaround Mar 14

    Safe to set out 2 weeks after last frost. Plant at least two for pollination: a single tomatillo rarely sets fruit. Husk turns papery and splits when ripe.

  • Ground Cherryaround Mar 14

    Safe to set out 2 weeks after last frost. Fruit drops when ripe, husk and all: rake or hand-pick off the ground every few days rather than picking from the plant.

  • Habanero Pepperaround Mar 14

    Safe to set out 2 weeks after last frost. Needs more heat and a longer season than bell peppers; start indoors early and don't rush it outside until nights stay above 55F.

  • Jalapeño Pepperaround Mar 14

    Safe to set out 2 weeks after last frost. Corking (light brown cracks near the stem) means the pepper is fully ripe and at peak heat, not damaged.

  • Poblano Pepperaround Mar 14

    Safe to set out 2 weeks after last frost. Picked green it's a poblano; left to ripen red on the plant and dried, it becomes an ancho chile.

  • Cayenne Pepperaround Mar 14

    Safe to set out 2 weeks after last frost. Thin-walled pods dry easily on the plant or strung indoors; harvest for drying once fully red.

  • Shishito Pepperaround Mar 14

    Safe to set out 2 weeks after last frost. Pick while still green and wrinkled for the classic blistered appetizer; about 1 in 10 fruits carries real heat.

  • New Zealand Spinacharound Mar 14

    Safe to set out 2 weeks after last frost. Soak seed 24 hours before sowing to soften the hard seed coat; it thrives in summer heat that bolts true spinach.

  • French Tarragonaround Mar 14

    Safe to set out 2 weeks after last frost. Doesn't come true from seed; buy or divide root cuttings, and divide the clump every 3 years to keep it vigorous.

  • Summer Savoryaround Mar 14

    Safe to set out 2 weeks after last frost. Harvest just before flowering for the best flavor, then shear the whole plant back for a second flush.

  • Lemon Balmaround Mar 14

    Safe to set out 2 weeks after last frost. Cut back hard before it flowers and sets seed, or it self-sows into every corner of the garden.

  • Marjoramaround Mar 14

    Safe to set out 2 weeks after last frost. Tender compared to oregano; treat as an annual outside zone 7 and bring a pot indoors for winter if you want it to persist.

  • Steviaaround Mar 14

    Safe to set out 2 weeks after last frost. Pinch flower buds as they form; once it blooms, leaf sweetness drops off sharply. Overwinter indoors north of zone 8.

  • Lovagearound Mar 14

    Safe to set out 2 weeks after last frost. Grows 4-6 ft tall once established; give it the back of the bed and divide the crown every few years to keep it productive.

  • Shiso (Perilla)around Mar 14

    Safe to set out 2 weeks after last frost. Self-sows aggressively once established; pinch spent flower spikes if you don't want volunteers taking over next spring.

  • Catniparound Mar 14

    Safe to set out 2 weeks after last frost. Fence it off if cats roam the neighborhood: they'll flatten the plant and any seedlings around it rolling in the scent.

  • Anise Hyssoparound Mar 14

    Safe to set out 2 weeks after last frost. Deadhead spent spikes to extend bloom all summer; bees and hummingbirds favor it over almost anything else nearby.

  • Epazotearound Mar 14

    Safe to set out 2 weeks after last frost. Self-sows freely once established; use a light hand in cooking, since the flavor is strong and a little goes a long way.

  • Culantro (Recao)around Mar 14

    Safe to set out 2 weeks after last frost. Slower to bolt than cilantro and holds flavor in heat; harvest outer leaves and the rosette keeps producing for months.

  • Bay Laurelaround Mar 14

    Safe to set out 2 weeks after last frost. North of zone 8, grow it in a pot and bring it in before frost; it tolerates being root-bound for years.

  • Pawpawaround Mar 14

    Safe to set out 2 weeks after last frost. Plant at least two genetically distinct trees; pawpaw needs cross-pollination and its flowers smell faintly of rotting meat to draw flies, not bees.

  • American Persimmonaround Mar 14

    Safe to set out 2 weeks after last frost. Fruit is astringent until fully soft-ripe; wait until it looks nearly rotten and falls into your hand, not before.

  • Mulberryaround Mar 14

    Safe to set out 2 weeks after last frost. Plant it as a decoy near berry patches: birds strongly prefer mulberries and will often leave raspberries alone if both are ripening.

  • Elderberryaround Mar 14

    Safe to set out 2 weeks after last frost. Plant two different cultivars for better fruit set; cut clusters when berries turn deep purple-black and cook before eating, never raw.

  • Black Currantaround Mar 14

    Safe to set out 2 weeks after last frost. Check state rules before planting: currants can be restricted near white pine stands due to blister rust; resistant cultivars exist where it's allowed.

  • Gooseberryaround Mar 14

    Safe to set out 2 weeks after last frost. Prune to an open vase shape each dormant season; good airflow through the center is the best defense against mildew.

  • Safe to set out 2 weeks after last frost. Fruit looks ripe well before it's ready; wait until berries turn nearly black and soften slightly to avoid the sharp astringency of early picking.

  • Honeyberry (Haskap)around Mar 14

    Safe to set out 2 weeks after last frost. Plant two different cultivars for pollination; it flowers and fruits earlier than almost any other berry, often before strawberries.

  • Safe to set out 2 weeks after last frost. Needs one male plant for every 6-8 females to fruit; the branches are thorny, so many growers cut whole fruited branches to harvest rather than pick berry by berry.

  • Quincearound Mar 14

    Safe to set out 2 weeks after last frost. Fruit is too astringent to eat raw; pick once golden and fragrant and cook it down for jam, paste, or poached quince.

  • Apricotaround Mar 14

    Safe to set out 2 weeks after last frost. Blooms very early, so it's often frost-hit; plant on a north-facing slope or against a wall to delay bloom by a few key days.

  • Nectarinearound Mar 14

    Safe to set out 2 weeks after last frost. Thin fruit to one every 4-6 in along the branch in late spring or the tree overbears and branches can snap under the weight.

  • Pomegranatearound Mar 14

    Safe to set out 2 weeks after last frost. Keep watering even through fruit development; a dry spell followed by heavy rain or irrigation is the most common cause of split fruit.

  • Safe to set out 2 weeks after last frost. Fruit can be eaten crisp and green-ripe like an apple, or left to wrinkle and turn mahogany-brown for a chewy, date-like texture.

  • Hardy Kiwiaround Mar 14

    Safe to set out 2 weeks after last frost. Plant one male vine for every 6-8 females; unlike fuzzy kiwi, the smooth skin means fruit can be eaten whole, no peeling.

  • Goji Berryaround Mar 14

    Safe to set out 2 weeks after last frost. Prune hard each dormant season; it suckers and sprawls readily, and untended plants turn into an unmanageable thicket fast.

  • Cranberryaround Mar 14

    Safe to set out 2 weeks after last frost. Needs boggy, acidic soil, pH 4-5; without a naturally wet, peaty spot, grow it in a lined bed you can flood periodically.

  • Lingonberryaround Mar 14

    Safe to set out 2 weeks after last frost. Mulch with pine needles or peat to hold the acidic soil pH it needs; it can produce two crops a year in longer seasons.

  • Safe to set out 2 weeks after last frost. Netting is close to mandatory: birds often strip a tree bare within a day or two of the berries ripening.

  • Hazelnut (Filbert)around Mar 14

    Safe to set out 2 weeks after last frost. Harvest as husks turn brown and nuts start dropping on their own; squirrels usually beat gardeners who wait too long.

  • Pecanaround Mar 14

    Safe to set out 2 weeks after last frost. Needs two different cultivars nearby for reliable pollination and a very large footprint; plan on it eventually shading a big chunk of the yard.

  • Black Walnutaround Mar 14

    Safe to set out 2 weeks after last frost. Give it a wide berth from the vegetable garden and other fruit trees; juglone in fallen leaves and roots can persist in soil for years.

  • Chestnutaround Mar 14

    Safe to set out 2 weeks after last frost. Choose blight-resistant Chinese or hybrid cultivars; the American chestnut itself was nearly wiped out by chestnut blight last century.

  • Almondaround Mar 14

    Safe to set out 2 weeks after last frost. Blooms very early, even earlier than apricot; late spring frost is the biggest threat to a nut crop, more than any pest.

  • Lemon (Meyer)around Mar 14

    Safe to set out 2 weeks after last frost. North of zone 9, grow it in a pot and move it indoors near a bright window before nights drop below 40F.

  • Orangearound Mar 14

    Safe to set out 2 weeks after last frost. Fruit holds well on the tree once ripe, unlike most fruit; there's no rush to pick the moment color turns, letting you stagger harvest.

  • Olivearound Mar 14

    Safe to set out 2 weeks after last frost. Fruit is inedible straight off the tree; it must be cured in brine or lye before it loses its intense bitterness.

  • Loquataround Mar 14

    Safe to set out 2 weeks after last frost. Loquat flowers in late fall and ripens in spring, so a hard midwinter freeze costs the whole crop; site it on the warm side of a building.

  • Passionfruitaround Mar 14

    Safe to set out 2 weeks after last frost. Fruit ripens after it drops. Let it fall, collect it daily, and hold it a week until the skin wrinkles for the sweetest pulp.

  • Pineapple Guavaaround Mar 14

    Safe to set out 2 weeks after last frost. Most named varieties set far more fruit with a second plant nearby, and the petals are edible while the flowers are open.

  • Medlararound Mar 14

    Safe to set out 2 weeks after last frost. Fruit is inedible until it bletts. Pick after a hard frost and hold it in a cool place for two to three weeks until the flesh turns soft and brown.

  • Chokecherryaround Mar 14

    Safe to set out 2 weeks after last frost. Leaves, twigs, and pits contain cyanogenic compounds and are toxic to people and livestock. Use only the cooked, strained pulp, and keep wilted prunings away from animals.

  • Highbush Cranberryaround Mar 14

    Safe to set out 2 weeks after last frost. Fruit is sour and best after frost; buy the American species rather than the European lookalike, whose fruit is bitter and far less useful.

  • Sweet Potatoaround Mar 21

    Safe to set out 3 weeks after last frost. Plant rooted slips, not seed. Wait until soil holds 65F, then let vines sprawl and cure roots at 80F for 10 days before storage: that curing step is what makes them sweet.

  • Eggplantaround Mar 21

    Safe to set out 3 weeks after last frost. Eggplant sulks in cold soil. Transplant 3 weeks after last frost, not on it. Harvest while skin is glossy: dull skin means bitter, seedy flesh.

  • Okraaround Mar 21

    Safe to set out 3 weeks after last frost. Okra wants hot soil, 70F+, or seed rots. Pick pods at 3-4 in every other day: one pod left to toughen tells the plant to stop producing.

  • Jicamaaround Mar 21

    Safe to set out 3 weeks after last frost. Needs 150+ frost-free days: outside zone 8+ it's best in a greenhouse or very large container brought in before frost. Pinch off flowers so energy goes into the root, not seed pods, which are toxic.

  • Malabar Spinacharound Mar 21

    Safe to set out 3 weeks after last frost. Not a true spinach; it's a vigorous heat-loving vine that replaces greens through the hottest weeks other greens can't survive.

  • Lemongrassaround Mar 21

    Safe to set out 3 weeks after last frost. Pot it up and bring it indoors before frost north of zone 9; a clump easily overwinters on a sunny windowsill.

  • Avocadoaround Mar 28

    Safe to set out 4 weeks after last frost. Avocado roots suffocate in wet soil. Plant on a low mound in coarse, fast-draining ground and never let irrigation water pool at the trunk.

  • Bananaaround Mar 28

    Safe to set out 4 weeks after last frost. Each stalk fruits once and dies. Cut it down after harvest and keep one or two suckers so the clump keeps producing.

Garden care

  • Mulch every bedaround Mar 21

    3-4 in of straw or leaves now holds water, blocks weeds, and cools roots for the whole summer.

  • Switch to fewer, longer soaks (1-1.5 in/week at the root) instead of daily sprinkles.

Succession sow

  • Bush beanaround Mar 28

    Sowing 2: replant every 14 days so one planting never has to feed you all season.

  • Sweet cornaround Mar 28

    Sowing 2: replant every 14 days so one planting never has to feed you all season.

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