What to plant in April in Zone 4

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 Apr 3 – Apr 17 (5 gal, 12" deep)
• Loose-leaf Lettuce — window Apr 17 – May 1 (2 gal, 6" deep)
• Basil — window Apr 3 – Apr 17 (2 gal, 8" deep)
• Kale — window Apr 10 – Apr 24 (3 gal, 10" deep)
• Bush Cucumber — window Apr 24 – May 8 (5 gal, 12" deep)
• Zucchini — window Apr 24 – May 8 (7 gal, 14" deep)
• Hot Pepper — window Mar 20 – Apr 3 (3 gal, 12" deep)
• Spinach — window Apr 17 – May 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 Apr 17 – Apr 27 (2 gal, 8" deep)
• Spinach — window Apr 24 – May 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 Apr 24 – May 15 (2 gal, 6" deep)
• Radish — window Apr 24 – May 15 (1 gal, 6" deep)
• Spinach — window Apr 17 – May 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.