Portulaca grandiflora, also known as moss rose, is a sun‑loving succulent annual that thrives under intense summer heat. This variety produces full double‑petaled flowers in vibrant pink shades, with bright golden‑yellow stamens at each flower’s center. Blossoms open wide under bright sunshine and fold inward during cloudy weather.
These flower seeds form dense spreading mats of fleshy needle‑shaped green foliage. It tolerates poor, sandy soil and long dry spells, making it a low‑maintenance pick for water‑wise gardens. It shines spilling over hanging basket edges, covering bare spots in rock gardens, or filling balcony pots. Well‑drained soil is critical; soggy soil quickly causes stem and root rot. Remove faded blooms to encourage more flower buds. In warm regions, it may gently self‑sow for new plants the following season. Planting Instructions Soil Preparation Choose fully sunny locations. Gritty, sandy, fast‑draining soil is preferred. Mix sand into heavy clay soil to improve drainage. Avoid low‑lying damp spots that hold standing water. Slightly acidic to neutral soil works best.
Seed Pre‑treatment No soaking or cold stratification required. Tiny seeds can mix with fine sand for even broadcasting.
Sowing Method Sow outdoors after all frost risk passes, or start indoors 4‑6 weeks before last frost. Press seeds lightly onto soil surface, do not cover deeply, seeds need light for germination. Keep 10‑15 cm spacing between seedlings for spreading growth.
Germination Condition Optimal germination temperature:20‑26°C. Seedlings emerge within 7‑14 days. Keep seedbed lightly moist at sprouting stage, strictly avoid water‑logging.
Daily Maintenance Full direct sunlight all day is essential. Water sparingly; allow soil to dry completely between watering sessions. Too much fertilizer leads to lush foliage with fewer flowers. Trim away spent blooms. Watch for root rot caused by overwatering.
Specification Plant Name: Portulaca grandiflora Botanical Name: Portulaca grandiflora Plant Type: Spreading succulent‑leaf heat‑tolerant annual flower Bloom Feature: Full double bright pink blossoms with golden‑yellow centers; flowers open in sunlight and close in overcast conditions Blooming & Fruiting Period: Early summer to early autumn Germination Temperature:20‑26°C Growing Temperature:18‑33°C, excellent heat and drought tolerance Light Requirement: Full sun Soil: Gritty well‑drained soil, tolerates poor sandy ground Planting Difficulty: Easy
Core Features: Portulaca grandiflora seeds, pink moss rose seeds, double‑bloom sun‑loving annual flower, drought‑resistant, suitable for ground cover, hanging baskets and balcony pot planting
FAQ Q1: Why do portulaca flowers not open? A1: Blossoms rely on strong direct sunlight. They stay closed on cloudy days, and insufficient sunlight will also prevent blooming. Q2: Can moss rose survive frequent watering? A2: It is succulent‑type plant. Over‑watering easily causes root rot. Let soil dry fully before watering again. Q3: Can portulaca be used as ground cover? A3: Yes. Its spreading growth habit makes it perfect for covering sunny bare ground and rock garden gaps. Q4: Does portulaca need plenty of fertilizer? A4: Too rich soil reduces flower count. Little feeding is enough for good blooming performance. Q5: Is portulaca frost hardy? A5: It is warm‑season annual. Plants will die once frost arrives.
