Planting calendar
August Planting Guide for Jacksonville, FL: Raised Beds, Containers & In-Ground
August in Jacksonville, FL is ideal for planting warm-season vegetables and preparing for fall crops in raised beds, containers, and in-ground gardens. Focus on heat-tolerant greens, root vegetables, and herbs that thrive in late summer conditions. Proper watering and shade can help young plants establish during the hot days.
Plant now (quick list)
Okra, Sweet potatoes, Southern peas (cowpeas, black-eyed peas), Malabar spinach, Eggplant, Peppers, Basil, Butter beans
Plant now
- Okra
- Sweet potatoes
- Southern peas (cowpeas, black-eyed peas)
- Malabar spinach
- Eggplant
- Peppers
- Basil
- Butter beans
- Yardlong beans
Start indoors
- Broccoli
- Cauliflower
- Cabbage
- Collard greens
- Kale
- Brussels sprouts
- Lettuce
- Spinach
Avoid
- Cool-season crops like carrots and radishes (too hot to germinate)
- Leafy greens that bolt quickly in heat (e.g., arugula)
- Peas (except southern peas)
- Potatoes
- Beans sensitive to heat (e.g., bush beans)
Next 2 weeks
- Transplant started broccoli and cabbage seedlings outdoors in shaded areas
- Begin mulching raised beds and containers to retain moisture
- Monitor for pests like aphids and spider mites on warm-season crops
- Increase watering frequency during heatwaves
- Prepare soil for fall planting by adding compost and organic matter
FAQs
Can I plant lettuce outdoors in August in Jacksonville?
Lettuce seeds struggle to germinate in August heat; it’s best to start them indoors and transplant later when temperatures moderate.
How often should I water raised beds in August?
Water raised beds deeply 2-3 times per week, adjusting for rainfall and heat; containers may need daily watering due to faster drying.
Is it too late to plant tomatoes in August?
August is late for tomatoes in Jacksonville; focus on heat-tolerant varieties or start seedlings indoors for fall planting.
What are good heat-tolerant herbs to plant now?
Basil, malabar spinach, and rosemary handle August heat well and can be planted in containers or beds.
Should I shade my seedlings in August?
Yes, providing temporary shade during peak afternoon sun helps young plants avoid heat stress and improves survival.
Next steps
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