What to plant in January: 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.
Dormant care
- Check season-extension geararound Jan 3
Patch row cover, cold frames and hoops now so a late freeze can't catch you unprepared.
- Pre-sprout seed potatoesaround Jan 17
Chit potatoes in a bright, cool spot for 2 weeks. Sprouted pieces jump ahead once planted.
Start indoors
- Pepperaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Pinch first flowers on transplants so the plant invests in roots before setting fruit.
- Parsleyaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Soak seeds 24 hrs before sowing. Cut outer stems and it comes back for years in mild zones.
- Chivesaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Divide the clump every 3 years: one plant becomes six with no effort.
- Oreganoaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Harvest just before flowering for the strongest flavor. Dries beautifully.
- Thymearound Jan 3
8 weeks of indoor growth before your last frost (02-28). Needs sharp drainage. Plant in gravelly soil or a raised bed edge. Never wet feet.
- Sagearound Jan 3
8 weeks of indoor growth before your last frost (02-28). Prune hard in spring to prevent woody stems and keep the plant productive for 5+ years.
- Eggplantaround Jan 3
8 weeks of indoor growth before your last frost (02-28). 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.
- Scallion (Green Onion)around Jan 3
8 weeks of indoor growth before your last frost (02-28). Sow thickly in a band and harvest by pulling every other plant: the rest fill in the gap.
- Jicamaaround Jan 3
8 weeks of indoor growth before your last frost (02-28). 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.
- Jalapeño Pepperaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Corking (light brown cracks near the stem) means the pepper is fully ripe and at peak heat, not damaged.
- Poblano Pepperaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Picked green it's a poblano; left to ripen red on the plant and dried, it becomes an ancho chile.
- Cayenne Pepperaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Thin-walled pods dry easily on the plant or strung indoors; harvest for drying once fully red.
- Shishito Pepperaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Pick while still green and wrinkled for the classic blistered appetizer; about 1 in 10 fruits carries real heat.
- Lemon Balmaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Cut back hard before it flowers and sets seed, or it self-sows into every corner of the garden.
- Marjoramaround Jan 3
8 weeks of indoor growth before your last frost (02-28). 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 Jan 3
8 weeks of indoor growth before your last frost (02-28). Pinch flower buds as they form; once it blooms, leaf sweetness drops off sharply. Overwinter indoors north of zone 8.
- Lovagearound Jan 3
8 weeks of indoor growth before your last frost (02-28). 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.
- Catniparound Jan 3
8 weeks of indoor growth before your last frost (02-28). Fence it off if cats roam the neighborhood: they'll flatten the plant and any seedlings around it rolling in the scent.
- Anise Hyssoparound Jan 3
8 weeks of indoor growth before your last frost (02-28). Deadhead spent spikes to extend bloom all summer; bees and hummingbirds favor it over almost anything else nearby.
- Culantro (Recao)around Jan 3
8 weeks of indoor growth before your last frost (02-28). Slower to bolt than cilantro and holds flavor in heat; harvest outer leaves and the rosette keeps producing for months.
- Passionfruitaround Jan 3
8 weeks of indoor growth before your last frost (02-28). Fruit ripens after it drops. Let it fall, collect it daily, and hold it a week until the skin wrinkles for the sweetest pulp.
- Tomatoaround Jan 17
6 weeks of indoor growth before your last frost (02-28). Bury 2/3 of the transplant stem. Roots form along the buried stem for a stronger plant.
- Kalearound Jan 17
6 weeks of indoor growth before your last frost (02-28). Fall crop sweetens after first frost. Plan a July sowing for the best flavor.
- Broccoliaround Jan 17
6 weeks of indoor growth before your last frost (02-28). After cutting the main head, side shoots keep coming for weeks: don't pull the plant.
- Basilaround Jan 17
6 weeks of indoor growth before your last frost (02-28). Pinch flower spikes the moment you see them: leaves stay sweet all season.
- Cabbagearound Jan 17
6 weeks of indoor growth before your last frost (02-28). Firm heads need steady water and steady nitrogen. Once a head feels solid, cut it: leaving it in summer heat splits it open overnight.
- Caulifloweraround Jan 17
6 weeks of indoor growth before your last frost (02-28). Cauliflower is the fussiest brassica: any check in water or nitrogen makes it button into a tiny head. Blanch white types by tying outer leaves over the curd.
- Brussels Sproutsaround Jan 17
6 weeks of indoor growth before your last frost (02-28). 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.
- Kohlrabiaround Jan 17
6 weeks of indoor growth before your last frost (02-28). Harvest the swollen stem at tennis-ball size, no bigger: past that it turns woody and fibrous fast.
- Romanescoaround Jan 17
6 weeks of indoor growth before your last frost (02-28). It's slower and fussier than cauliflower; give it the longest cool-weather window you can, spring or fall, not summer.
- Cucamelonaround Jan 17
6 weeks of indoor growth before your last frost (02-28). 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 Jan 17
6 weeks of indoor growth before your last frost (02-28). Plant at least two for pollination: a single tomatillo rarely sets fruit. Husk turns papery and splits when ripe.
- Ground Cherryaround Jan 17
6 weeks of indoor growth before your last frost (02-28). Fruit drops when ripe, husk and all: rake or hand-pick off the ground every few days rather than picking from the plant.
- Radicchioaround Jan 17
6 weeks of indoor growth before your last frost (02-28). Cool fall weather brings out its best deep red color and mellows bitterness; grow it as a fall crop where possible.
- Sorrelaround Jan 17
6 weeks of indoor growth before your last frost (02-28). Snip flower stalks as they appear to keep leaves tender; the lemony tang fades if the plant is allowed to bolt.
- Malabar Spinacharound Jan 17
6 weeks of indoor growth before your last frost (02-28). Not a true spinach; it's a vigorous heat-loving vine that replaces greens through the hottest weeks other greens can't survive.
- Summer Savoryaround Jan 17
6 weeks of indoor growth before your last frost (02-28). Harvest just before flowering for the best flavor, then shear the whole plant back for a second flush.
- Chamomile (German)around Jan 17
6 weeks of indoor growth before your last frost (02-28). Pick flowers at midday once fully open, on a dry day, for the strongest tea; it dries quickly on a screen out of direct sun.
- Shiso (Perilla)around Jan 17
6 weeks of indoor growth before your last frost (02-28). Self-sows aggressively once established; pinch spent flower spikes if you don't want volunteers taking over next spring.
- Anisearound Jan 17
6 weeks of indoor growth before your last frost (02-28). Needs a long, warm, frost-free season to set seed; stake plants, as the thin stalks flop once seed heads fill out.
- Epazotearound Jan 17
6 weeks of indoor growth before your last frost (02-28). Self-sows freely once established; use a light hand in cooking, since the flavor is strong and a little goes a long way.
- Collardsaround Jan 24
5 weeks of indoor growth before your last frost (02-28). The most forgiving green in the garden. Harvest bottom leaves upward and it produces for months. Leaves picked after a frost are noticeably sweeter.
- Napa Cabbagearound Jan 24
5 weeks of indoor growth before your last frost (02-28). Grow it as a fall crop where possible: napa bolts in spring heat but forms a tight, sweet head in cooling fall days.
- Lettucearound Jan 31
4 weeks of indoor growth before your last frost (02-28). Succession sow every 2 weeks. Harvest outer leaves for a cut-and-come-again supply.
- Swiss Chardaround Jan 31
4 weeks of indoor growth before your last frost (02-28). Cut outer stalks 2 in above the crown and the plant keeps producing from spring into hard frost. One planting can feed a household all season.
- Okraaround Jan 31
4 weeks of indoor growth before your last frost (02-28). 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.
- Bok Choyaround Jan 31
4 weeks of indoor growth before your last frost (02-28). Bolts fast once days lengthen past 14 hours. Grow it as an early spring or fall crop, not a summer one.
- Peanutaround Jan 31
4 weeks of indoor growth before your last frost (02-28). Flowers self-pollinate then push a stalk (peg) into the soil to form the pod underground: keep soil loose around the base.
- Bitter Melonaround Jan 31
4 weeks of indoor growth before your last frost (02-28). Pick fruit while still green and firm; left to yellow and split, it turns bitter to the point of inedible.
- Luffa (Vegetable Sponge Gourd)around Jan 31
4 weeks of indoor growth before your last frost (02-28). Pick young for eating like a squash, or leave on the vine until the skin browns and dries for a bath sponge.
- Endivearound Jan 31
4 weeks of indoor growth before your last frost (02-28). Blanch heads by tying outer leaves shut 2 weeks before harvest to mellow the natural bitterness.
- Escarolearound Jan 31
4 weeks of indoor growth before your last frost (02-28). Broader and milder than curly endive; a light frost sweetens the outer leaves before harvest.
- New Zealand Spinacharound Jan 31
4 weeks of indoor growth before your last frost (02-28). Soak seed 24 hours before sowing to soften the hard seed coat; it thrives in summer heat that bolts true spinach.
- Bulb Fennel (Florence Fennel)around Jan 31
4 weeks of indoor growth before your last frost (02-28). Bolts fast in heat or from a check in growth; keep it evenly watered and harvest the bulb once it's baseball-sized, before it flowers.
Direct sow
- Daikon Radisharound Jan 3
Soil is ready -8 weeks before last frost.
- Napa Cabbagearound Jan 17
Soil is ready -6 weeks before last frost.
- Fava Beanaround Jan 17
Soil is ready -6 weeks before last frost.
- Radicchioaround Jan 17
Soil is ready -6 weeks before last frost.
- Mâche (Corn Salad)around Jan 17
Soil is ready -6 weeks before last frost.
- Claytonia (Miner's Lettuce)around Jan 17
Soil is ready -6 weeks before last frost.
- Peaaround Jan 24
Soil is ready -5 weeks before last frost.
- Lettucearound Jan 31
Soil is ready -4 weeks before last frost.
- Spinacharound Jan 31
Soil is ready -4 weeks before last frost.
- Radisharound Jan 31
Soil is ready -4 weeks before last frost.
- Turniparound Jan 31
Soil is ready -4 weeks before last frost.
- Arugulaaround Jan 31
Soil is ready -4 weeks before last frost.
- Mizunaaround Jan 31
Soil is ready -4 weeks before last frost.
- Tatsoiaround Jan 31
Soil is ready -4 weeks before last frost.
- Mustard Greensaround Jan 31
Soil is ready -4 weeks before last frost.
- Broccoli Raabaround Jan 31
Soil is ready -4 weeks before last frost.
- Shallotaround Jan 31
Soil is ready -4 weeks before last frost.
- Endivearound Jan 31
Soil is ready -4 weeks before last frost.
- Escarolearound Jan 31
Soil is ready -4 weeks before last frost.
- Orach (Mountain Spinach)around Jan 31
Soil is ready -4 weeks before last frost.
Transplant out
- Raspberryaround Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Blueberryaround Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Blackberryaround Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Grapearound Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Applearound Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Peararound Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Peacharound Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Rhubarbaround Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Plumaround Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Cherryaround Jan 17
Goes out 6 weeks before last frost. It takes the cold.
- Asparagusaround Jan 31
Goes out 4 weeks before last frost. It takes the cold.
- Horseradisharound Jan 31
Goes out 4 weeks before last frost. It takes the cold.
Garden care
- Wake the bedsaround Jan 24
Turn in compost, cut down cover crops, and let the soil warm two weeks before the first sowing.
- Harden off early transplantsaround Jan 31
Two weeks of increasing outdoor time keeps cold-hardy seedlings from stalling when they go out.
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