? Seed Treatment
- Seeds are tiny and need light to germinate, so do not cover with soil.
- Soaking: Soak seeds in warm water for 2–4 hours.
? Sowing Instructions
- When to Sow:
- Indoors: Start seeds 6–8 weeks before the last frost if you want an early bloom.
- Outdoors: Direct sow in late spring after the last frost, when soil is warm.
- Soil Requirements:
- Prefers sandy, well-draining soil.
- Thrives in poor to average soils with low fertility.
- pH range: 5.5–7.0 (slightly acidic to neutral).
- Light Requirements:
- Requires full sun (at least 6–8 hours daily).
- The sunnier, the better for abundant blooms.
- Sowing Depth:
- Surface sow the seeds.
- Gently press into the soil without covering — they need light to germinate.
- Watering:
- Water gently to keep soil evenly moist until germination.
- Once established, Portulaca grandiflora is very drought-tolerant and prefers dry conditions.
- Avoid overwatering or waterlogged soil.
- Germination Time:
- Seeds typically germinate in 10–14 days at 70–85°F (21–29°C).
- Spacing:
- Thin or transplant seedlings 6–10 inches (15–25 cm) apart for good airflow and spreading habit.
? Growing Tips
- Portulaca grandiflora is a sun-loving annual known for its bright, rose-like flowers and succulent foliage.
- Excellent for containers, rock gardens, edging, and hot, dry spots in the landscape.
- Deadheading is not necessary, but you can pinch back stems to encourage bushier growth.
- Avoid fertilizing heavily — too much nitrogen will reduce flowering.
With minimal care and vibrant color all summer long, Portulaca is a top choice for easy, heat-tolerant blooms! ??