Everlasting Flower, Immortelle
xeranthemum cylindraceum
Also known as: ["Immortelle","Everlasting Flower"]
Overview
A perennial herbaceous plant known for its papery, everlasting flowers that retain their color and shape when dried.
Benefits & Perks
["long-flowering","drought tolerant","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Xeranthemum |
| Botanical Name: | Xeranthemum cylindraceum |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: border plantings or rock gardens in full sun
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–30°C"}
- Hardiness: {"zones":"6–9"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, sandy loam with added organic matter for fertility.
Maintenance Level
- Maintenance Level: low
- Toughness Level: moderate
- Pruning Frequency: After flowering or every 2–3 months to maintain shape.
- Pruning Intensity: Moderate; remove up to one-third of the plant if overgrown, otherwise light pruning.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours/day) with well-ventilated air. Adjust for intense summer sun by providing partial shade midday.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from scorching by providing shade during peak hours; ensure good air circulation to prevent heat stress.
Care Requirements
Care Difficulty
easymoderate
Sunlight
full sun
Rotate plants for even light exposure; use sheer curtains to filter intense sun; avoid placing in drafty areas.
Watering
every 7–10 days during active growth, reduce in winter
Water deeply but infrequently; ensure excellent drainage; avoid overhead watering to prevent fungal issues.
Soil
well-draining, sandy loam with some organic matter
pH: Slightly acidic to neutral (pH 6.0–7.0).
Use a cactus or succulent mix as a base; avoid heavy clay soils; ensure pots have drainage holes.
Temperature
Prefers moderate temperatures (65–75°F / 18–24°C). Tolerates cooler nights but avoids frost.
Avoid sudden temperature fluctuations; protect from cold drafts; maintain consistent warmth during active growth.
Fertilizing
every 4–6 weeks during growing season, none in winter
Fertilize only when actively growing; flush soil occasionally to prevent salt buildup; use a balanced formula for flowering plants.
Propagation
Methods
Stem cuttings or division. Stem cuttings are more common for home growers.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Dip in rooting hormone.
- Plant in medium.
- Keep moist and warm.
Best Time: Late spring to early summer when the plant is actively growing.
Environment
Warm (70–75°F / 21–24°C), humid, and bright indirect light with good air circulation.
Medium
Well-draining mix of perlite and peat moss or cactus potting mix.
Hormone
Recommended to use rooting hormone powder for faster root development.
Timeline
Roots typically form in 3–4 weeks; new growth appears in 6–8 weeks.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining medium, misting bottle.
Quick Tips
Use healthy, non-flowering stems; maintain consistent moisture; avoid direct sun during rooting.
Pruning & Repotting
Pruning Guide
Method
Pinch back tips for bushiness; deadhead spent flowers; cut back leggy stems to a healthy bud.
Pruning Plan
Prune to maintain shape, encourage bushier growth, and remove spent flowers to promote reblooming.
Tools
Sharp, clean pruning shears or scissors, gloves.
Checklist
Sterilize tools; prune during dry conditions; make clean cuts; dispose of pruned material.
Repotting Guide
Best Season
Early spring before the active growing season begins.
Pot Size
Increase pot size by 1–2 inches in diameter; avoid oversized pots.
Method
Remove plant gently; trim any circling roots; place in a slightly larger pot with fresh, well-draining soil; water lightly.
Suggestions
Repot every 2–3 years or when roots fill the pot to prevent overcrowding and ensure fresh soil.
Checklist
Choose appropriate pot size; prepare fresh soil mix; handle roots carefully; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water deeply; ensure drainage; avoid wetting foliage.
How to Apply Water Properly
Water at the base of the plant, ensuring moisture reaches the root zone without saturating the soil. Water early in the day to allow foliage to dry.
Watering Schedule Tips
Water sparingly, allowing soil to dry completely between waterings. Reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or coarse sand for drainage; incorporate compost for fertility; ensure soil is loose and airy.
Temperature Stress Management
Signs of Temperature Issues
Wilting, yellowing leaves, or stunted growth in extreme heat or cold; bud drop or flower discoloration.
Cold Stress
Low temperatures slow growth and can cause root damage or death if below 50°F (10°C).
Solution: Move potted plants indoors or to a sheltered location; use frost cloth for outdoor plants; ensure good insulation around roots.
Hot Stress
Excessive heat can lead to wilting, leaf scorch, or reduced flowering due to dehydration.
Solution: Provide afternoon shade; increase watering frequency; use mulch to retain soil moisture; improve air circulation.
Fertilizing Guide
Fertilizing Checklist
Check growth phase before fertilizing; dilute fertilizer correctly; water before applying; avoid contact with foliage.
Fertilizing Method
Use a balanced, water-soluble fertilizer diluted to half strength every 4–6 weeks during the growing season (spring to early summer). Avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicXeranthemum cylindraceum is not known to be toxic to cats. There are no reported adverse effects from ingestion.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Non-toxicXeranthemum cylindraceum is not known to be toxic to dogs. There are no reported adverse effects from ingestion.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Non-toxicXeranthemum cylindraceum is not known to have toxic effects on humans. It is generally considered safe for consumption in small quantities.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: How do I dry the flowers of Xeranthemum cylindraceum?
A: Hang the flowers upside down in a dry, dark place with good air circulation.
Q: Is Xeranthemum cylindraceum toxic to pets?
A: No, it is non-toxic to dogs and cats.
Q: Does this plant require much care?
A: It is low maintenance and drought tolerant, making it suitable for beginners and busy gardeners.
Quick Reference
| Family: | Asteraceae |
| Care: | easy |
| Light: | full sun |
| Water: | every 7–10 days during activ |
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