Zones

Zone 4b planting guide

Similar to 4a with a slightly longer shoulder. Still a counted season.

Last spring frost

May 5

First fall frost

Oct 1

Winter low

−25 to −20°F

Nothing urgent this week in this zone. Use the calendar for the year view, or browse crops to plan.

Crops for this zone

• Tomatoes
• Peppers
• Lettuce
• Basil
• Zucchini
• Beans
• Kale
• Spinach
• Radish
• Carrots
• Peas
• Cilantro
• Cucumber
• Sunflower
• Zinnia
• Garlic
• Arugula
• Broccoli
• Swiss chard
• Beets
• Parsley
• Dill
• Marigold
• Winter squash
• Onions
• Potatoes

Cities in Zone 4b

• Anchorage, AK

Year at a glance

1. January

   Rest. Inventory leftover seed. Do not buy 40 tomato varieties.

2. February

   Plan, order, or rest — match the frost dates at the top of this page.

3. March

   Start peppers indoors. Order the last of the seed. Do not sow outdoors.

4. April

   Start tomatoes indoors. Cool crops can be sown under cover or in a cold frame.

5. May

   Typical last-frost month. Harden off. Direct-sow radish, lettuce, peas if you have not.

6. June

   Warm soil. Beans, squash, basil, zinnias, cucumbers. Transplant tomatoes.

7. July

   Tend and harvest. A second sowing of beans if the math works. Plan the fall bed.

8. August

   Fall greens in now if you have not. Count days. Skip new long-season fruit.

9. September

   Last radish and spinach. Prep garlic ground. Harvest the tender things.

10. October

    Typical first-frost month. Plant garlic. Mulch. Take notes while you remember the year.

11. November · now

    Plan, order, or rest — match the frost dates at the top of this page.

12. December

    Rest. Inventory leftover seed. Do not buy 40 tomato varieties.

Match your ZIP · Shop a kit