Moss Rose
portulaca grandiflora
Also known as: ["Moss Pink","Sun Plant"]
Overview
A low-growing, succulent annual with vibrant, cup-shaped flowers that open in full sun and close in the evening.
Benefits & Perks
["long-flowering","drought tolerant","low maintenance","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Caryophyllales |
| Family: | Portulacaceae |
| Genus: | Portulaca |
| Botanical Name: | Portulaca grandiflora |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: outdoor garden bed or container in full sun
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"10–35°C"}
- Hardiness: {"zones":"9–11"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, sandy soil with some organic matter; cactus or succulent mix is ideal.
Maintenance Level
- Maintenance Level: very low
- Toughness Level: very high
- Pruning Frequency: As needed throughout the growing season; deadhead flowers regularly.
- Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary to control size.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily); adjust for intense summer heat by providing partial shade.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from harsh midday sun in summer; place in a spot with morning sun and afternoon shade if needed.
Care Requirements
Care Difficulty
very easyeasy
Sunlight
full sun
Rotate plant for even growth; avoid sudden light changes; use sheer curtains to filter intense light.
Watering
every 7–10 days, or when soil is dry to the touch
Water thoroughly but infrequently; ensure soil dries between waterings; avoid overhead watering.
Soil
well-draining, sandy soil
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure pots have drainage holes; avoid heavy clay soils; use a mix with good aeration.
Temperature
Warm temperatures (65–85°F / 18–29°C); thrives in heat; avoid temperatures below 50°F (10°C).
Protect from frost; avoid placing near drafty windows; maintain consistent warmth for optimal growth.
Fertilizing
every 4–6 weeks during active growing season
Fertilize sparingly to prevent leggy growth; apply after watering to avoid root burn; stop in late autumn.
Propagation
Methods
Stem cuttings; leaf cuttings can also be used but are less reliable.
Step-by-Step Propagation Guide
- Take a 3–4 inch cutting.
- Remove lower leaves.
- Dip in rooting hormone.
- Plant in moist medium.
- Keep humid.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with bright indirect light; maintain temperatures around 70–75°F (21–24°C).
Medium
Well-draining mix of perlite and peat moss or cactus potting mix.
Hormone
Optional but recommended for faster rooting.
Timeline
Roots develop in 1–2 weeks; new growth appears in 3–4 weeks.
Tools Needed
Sharp scissors, rooting hormone, small pots, well-draining medium.
Quick Tips
Use healthy, non-flowering stems; keep soil lightly moist; provide bottom heat for faster rooting.
Pruning & Repotting
Pruning Guide
Method
Pinch back stems or use clean shears to cut just above a leaf node.
Pruning Plan
Light pruning to maintain shape and encourage bushier growth; remove spent flowers to promote continuous blooming.
Tools
Clean, sharp scissors or pruning shears.
Checklist
Use clean tools; prune dead or damaged stems; remove spent flowers; shape as desired.
Repotting Guide
Best Season
Spring, before the active growing season begins.
Pot Size
Increase pot size by 1–2 inches in diameter; ensure good drainage.
Method
Gently remove plant; trim roots if necessary; place in a new pot with fresh soil; water lightly.
Suggestions
Repot every 1–2 years or when roots fill the pot; beneficial for maintaining vigor.
Checklist
Choose appropriate pot; prepare new soil; handle roots carefully; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; avoid wetting leaves.
How to Apply Water Properly
Water at the base of the plant, ensuring moisture reaches the root zone; allow excess water to drain away; water in the morning to minimize evaporation.
Watering Schedule Tips
Water deeply once the top inch of soil feels dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or coarse sand to improve drainage; incorporate compost for fertility.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf drop, or stunted growth in cold; scorching or bleaching of leaves in excessive heat.
Cold Stress
Stagnant growth, leaf discoloration, and potential root rot due to cold soil and reduced metabolic activity.
Solution: Move to a warmer location; provide a heat source if indoors; avoid overwatering in cold conditions.
Hot Stress
Leaf scorch, wilting, and reduced flowering due to excessive heat and water loss.
Solution: Provide partial shade during peak heat; increase watering frequency; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Check fertilizer label; dilute properly; apply to moist soil; avoid contact with leaves.
Fertilizing Method
Use a balanced liquid fertilizer diluted to half strength every 4–6 weeks during the growing season; avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicPortulaca grandiflora is not known to be toxic to cats. There are no reported cases of adverse effects from ingestion or contact with this plant.
⚡ Toxic If:
Generally non-toxic
Dogs
Non-toxicPortulaca grandiflora is not known to be toxic to dogs. There are no reported cases of adverse effects from ingestion or contact with this plant.
⚡ Toxic If:
Generally non-toxic
Humans
Non-toxicPortulaca grandiflora is not known to have toxic effects on humans. It is commonly used in ornamental gardens and is generally considered safe for human contact and ingestion in small quantities.
⚡ Toxic If:
Generally non-toxic
Frequently Asked Questions
Q: Does Moss Rose need full sun?
A: Yes, it thrives in full sun and requires at least 6 hours of direct sunlight daily.
Q: How often should I water Moss Rose?
A: Water sparingly, as it is drought-tolerant and overwatering can cause root rot.
Q: Does Moss Rose attract pollinators?
A: Yes, its bright flowers attract bees, butterflies, and other pollinators.
Quick Reference
| Family: | Portulacaceae |
| Care: | very easy |
| Light: | full sun |
| Water: | every 7–10 days, or when soi |
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