Planting calendar
August Planting Guide for Austin, TX: Raised Beds, Containers & In-Ground Gardens
In August, Austin gardeners can focus on planting heat-tolerant fall crops and preparing for cooler weather. This month is ideal for sowing seeds directly in raised beds, containers, or in-ground to ensure a productive fall harvest. Prioritize crops that thrive in late summer warmth and plan indoor seed starting for cooler season vegetables.
Plant now (quick list)
Okra, Sweet potatoes (slips), Southern peas (cowpeas, black-eyed peas), Malabar spinach, Collard greens, Mustard greens, Swiss chard, Bush beans
Plant now
- Okra
- Sweet potatoes (slips)
- Southern peas (cowpeas, black-eyed peas)
- Malabar spinach
- Collard greens
- Mustard greens
- Swiss chard
- Bush beans
- Eggplant
- Peppers
Start indoors
- Broccoli
- Cauliflower
- Cabbage
- Kale
- Brussels sprouts
- Lettuce
- Spinach
- Beets
- Carrots
- Radishes
Avoid
- Tomatoes (direct sow, as heat may inhibit germination)
- Corn (late planting reduces yield)
- Cucumbers (heat stress reduces fruit set)
- Squash (susceptible to powdery mildew in late summer)
- Potatoes (planting now risks poor tuber development)
- Peas (heat sensitive, best planted later)
- Leafy greens (direct sow may bolt quickly)
- Melons (late planting reduces fruit quality)
Next 2 weeks
- Monitor soil moisture closely; irrigate deeply in raised beds and containers
- Apply mulch to conserve moisture and regulate soil temperature
- Begin hardening off indoor-started cool-season seedlings
- Inspect for pests like aphids and spider mites, especially on container plants
- Fertilize heat-loving crops with balanced fertilizer
- Plan crop rotation to reduce soil-borne diseases
- Prepare soil for fall planting by adding compost
- Thin seedlings to prevent overcrowding
- Stake or support tall plants like okra and peppers
- Keep an eye on afternoon shade to protect heat-sensitive plants
FAQs
Can I plant tomatoes in August in Austin?
Direct sowing tomatoes in August is not recommended due to high heat which can prevent germination. Instead, start seedlings indoors for transplanting in early fall.
What vegetables grow best in containers during August?
Heat-tolerant crops like okra, peppers, and southern peas do well in containers in August. Ensure consistent watering and some afternoon shade.
How often should I water raised beds in August?
Water raised beds deeply about 2-3 times per week, adjusting for rainfall and container moisture which may require more frequent watering.
Is it too late to start cool-season crops in August?
No, August is a good time to start cool-season crops indoors for transplanting in September when temperatures moderate.
What pests should I watch for in August gardens?
Common pests include aphids, spider mites, and whiteflies. Regularly inspect plants and use appropriate organic controls if needed.
Next steps
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