Balcony Harvest

Zone 10 · January · 4 weeks before last frost

What to plant in January in Zone 10

Typical last frost in zone 10 is around Feb 15, and first frost around Dec 1. Most of the northern zone map is dormant and most of the southern map is in its cool-season window. January work is planning, seed ordering, and indoor starts for the longest-season crops.

Start indoors this month

Seed trays indoors, under a light or in the brightest window you have. These are slow crops that need a head start on the season.

  • Cherry Tomato — window Jan 4 – Jan 18 (5 gal, 12" deep)
  • Loose-leaf Lettuce — window Jan 18 – Feb 1 (2 gal, 6" deep)
  • Basil — window Jan 4 – Jan 18 (2 gal, 8" deep)
  • Kale — window Jan 11 – Jan 25 (3 gal, 10" deep)
  • Bush Cucumber — window Jan 25 – Feb 8 (5 gal, 12" deep)
  • Zucchini — window Jan 25 – Feb 8 (7 gal, 14" deep)
  • Hot Pepper — window Dec 21 – Jan 4 (3 gal, 12" deep)
  • Spinach — window Jan 18 – Feb 1 (2 gal, 6" deep)

Set out into the final container

Transplants go into the pot they will finish in. Hardening them off for four to five days first prevents most transplant shock.

  • Strawberry — window Jan 18 – Jan 28 (2 gal, 8" deep)
  • Spinach — window Jan 25 – Feb 4 (2 gal, 6" deep)

Direct sow

Sow straight into the final pot. These crops resent root disturbance, and transplanting them usually costs more time than it saves.

  • Loose-leaf Lettuce — window Jan 25 – Feb 15 (2 gal, 6" deep)
  • Radish — window Jan 25 – Feb 15 (1 gal, 6" deep)
  • Spinach — window Jan 18 – Feb 8 (2 gal, 6" deep)

Sow for autumn

A second sowing timed backwards from first frost. Fewer pests, less watering, and better flavour in most cool crops.

No autumn sowing window opens this month in this zone.

Harvesting this month

Nothing from our dataset is in its harvest window this month here.

Not this month

Everything in the dataset is either in an active window or already finished for the year. Nothing is badly timed this month.

Zone 10 at a glance

Zone 10 is close to frost-free, which inverts the calendar: 'cool season' means winter, and summer is genuinely hostile to lettuce and spinach.

Compare all 12 crops in the full calendar

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