Planting calendar
August Planting Guide for Boston, MA: Raised Beds, Containers, and In-Ground Gardens
In August, Boston gardeners can focus on planting cool-season crops and preparing for fall harvests in raised beds, containers, and in-ground gardens. This is an ideal time to sow leafy greens and root vegetables for a late-season yield while starting some seeds indoors for transplant later.
Plant now (quick list)
spinach, lettuce, radishes, kale, carrots, beets, turnips, arugula
Plant now
- spinach
- lettuce
- radishes
- kale
- carrots
- beets
- turnips
- arugula
Start indoors
- broccoli
- cauliflower
- cabbage
- Brussels sprouts
- kohlrabi
- lettuce (for transplant)
- celery
Avoid
- tomatoes
- peppers
- eggplants
- beans
- corn
- summer squash
- cucumbers
Next 2 weeks
- direct sow spinach and lettuce in containers and raised beds
- thin seedlings of carrots and beets for better root development
- water consistently to prevent heat stress on young plants
- apply mulch to conserve moisture and reduce weeds
- start hardening off indoor seedlings for fall transplant
- monitor for pests like aphids on leafy greens
- avoid fertilizing heavy feeders to prevent excessive leaf growth
FAQs
Can I plant tomatoes in August in Boston?
It's best to avoid planting tomatoes in August as the season is too late for them to mature before the first frost.
How long before the first frost should I stop planting outdoors?
Stop direct sowing cool-season crops about 6-8 weeks before the average first frost date to ensure they mature in time.
What are the benefits of starting seedlings indoors in August?
Starting seedlings indoors allows plants like broccoli and cabbage to establish before transplanting, extending your growing season into fall.
Should I continue watering plants daily in August?
Yes, consistent watering is important, especially during hot spells, but avoid overwatering to prevent root diseases.
Can I reuse soil from summer crops for fall planting?
It's best to amend or replace soil after summer crops to replenish nutrients and reduce disease risk before planting fall vegetables.
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