Peas thrive in the cool temperatures of early spring. They should be planted as soon as the soil can be worked, which is often four to six weeks before the last expected frost. Planting peas in late spring can result in poor yields because they do not tolerate heat well and will stop producing once temperatures consistently reach above 75°F (24°C).
By planting early, you give peas the opportunity to grow and produce pods before the heat of summer sets in.
6. Transplanting Basil Before Night Temperatures Rise
Basil is a tender herb that thrives in warm conditions and is very sensitive to cold. Transplanting basil outdoors before nighttime temperatures are consistently above 50°F (10°C) can cause shock and stunt its growth.
To ensure healthy basil plants, wait until the soil is warm and night temperatures are suitable. If necessary, protect young plants with row covers or bring them indoors during cold nights.
7. Sowing Carrots in Hot Weather
Carrots prefer cooler weather and should be sown in early spring or late summer for a fall harvest. Planting carrots in hot weather can lead to poor germination and misshapen roots.
Carrots need a soil temperature of around 55°F to 75°F (13°C to 24°C) for optimal germination. If you’re planting in late summer, ensure the soil remains moist to encourage germination and consider using mulch to keep the soil cool.
8. Planting Strawberries in Summer
Strawberries should be planted in early spring or fall, not summer. Planting in summer can stress the plants due to heat and dry conditions, leading to poor establishment.
By planting in early spring or fall, strawberries have time to establish strong root systems before the challenges of hot weather or winter. This timing also aligns with their natural growth cycles, improving the chances of a successful harvest.
9. Starting Broccoli After Spring Begins
Broccoli is a cool-season crop that should be started early, about 6-8 weeks before the last frost, and transplanted outdoors 2-4 weeks before the last frost date. Starting broccoli after spring begins can expose it to warm temperatures, causing it to bolt and produce small heads.
To avoid this, plan your broccoli planting so that it matures in cool weather. This may mean starting seeds indoors while it’s still winter or early spring.
10. Sowing Spinach in Warm Weather
Spinach is another cool-season crop that struggles in warm weather. It should be sown as soon as the soil can be worked in spring and again in late summer for a fall harvest. Planting spinach in warm weather can cause it to bolt quickly and become bitter.
To ensure a successful spinach crop, aim for soil temperatures between 45°F and 68°F (7°C to 20°C) and provide shade or mulch during warmer periods to maintain cool soil conditions.
11. Planting Radishes in Summer Heat
Radishes are fast-growing and prefer cool weather. Planting them in the summer heat can result in tough, woody roots and poor flavor. Radishes are best sown in early spring or late summer for a fall harvest.
For best results, plant radishes in soil temperatures between 50°F and 65°F (10°C to 18°C). Succession planting every two weeks can provide a continuous harvest during the cooler months.