June · Early summer
What to sow in June in Philadelphia
29 crops are in their window this month in Philadelphia — timed to your local frost dates.
Last frost≈ 12 Apr
First frost≈ 11 Nov
Frost-free days163 days
June averages67°–85°F
Vegetables
22 in season
Amaranth Greens
Direct sow · pinch tips often for a steady flush of tender greens
Armenian Cucumber
Direct sow · wait for warm soil; trellis for straighter fruit
Bitter Melon
Start indoors · harvest young and green — riper fruit turns bitter
Bush Beans
Direct sow · sow after soil warms; skip cold, wet spring soil
Cucumbers
Direct sow · trellis vines to save space and straighten fruit
Herbs
4 in season
Basil
Start indoors · loves heat, don't rush it outside before frost
Epazote
Direct sow · cut flower heads early or it self-seeds everywhere
Fenugreek (Methi)
Direct sow · ready to cut in under a month; sow again for more
Rosemary
Transplant seedlings · germinates slowly, cuttings are far more reliable
Fruit
3 in season
Ground Cherries
Transplant seedlings · let ripe fruit drop; husks turn tan and papery
Melon (Cantaloupe)
Direct sow · warm soil is key; try black plastic mulch to help
Watermelon
Direct sow · give vines plenty of room and consistent water