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🌱 Monterey Cypress

🔬 Cupressus macrocarpa · 👨‍👩‍👧 Famille: Cupressaceae · 🌍 Origine: California, United States

À propos de Monterey Cypress

Monterey cypress (Cupressus macrocarpa) is an evergreen conifer native to a very restricted coastal range in Monterey County, California. It is widely planted elsewhere as a windbreak and ornamental tree, valued for its dense habit and aromatic foliage, but can be susceptible to cypress canker in cultivation.

🌱 Guide d'Entretien Détaillé

☀️ Lumière: ☀️ Plein Soleil
💧 Arrosage: drip, hose, soaking
💦 Humidité: 65%
🌡️ Température: Idéale: 18°C • Min: -10°C • Max: 35°C
⚙️ Entretien: ⚡ Modéré
🌱 Substrat: sand, gravel, perlite

📐 Croissance & Structure

📏 Hauteur: 2500 cm
↔️ Envergure: 1200 cm
🔄 Cycle de vie: perennial
🍃 Feuillage: evergreen
🌿 Saisons: spring, summer, autumn, winter

📅 Phénologie

🌱 Semis: march, april, may
🌸 Floraison: february, march, april
🍎 Fructification: september, october, november

🌍 Écologie

🌿 Rôle biodiversité: green manure
🌍 Conservation: vulnerable

✨ Utilisations & Avantages

  • ornamental
  • aromatic
  • fragrant

⚠️ Sécurité & Caractéristiques

👤 Toxicité humaine: slightly toxic
🐾 Toxicité animaux: slightly toxic
⚠️ Allergènes: pollen

🌱 Propagation

🌱 Multiplication: seed, cutting, grafting
🌰 Méthode de semis: tray, pot
🪴 Transplantation:
🏗️ Tuteurage nécessaire:

🧪 Sol & Nutrition

🍂 Paillage: bark, wood chips
🧪 Engrais: granular fertilizer, sea fertilizer, natural mulch
Besoins nutritifs: nitrogen, phosphorus, potassium, magnesium

🐛 Ravageurs & Maladies

🐛 Ravageurs: Cypress aphid (Cinara cupressi), Cypress bark beetles (Phloeosinus spp.), Juniper scale (Carulaspis juniperi), Spruce spider mite (Oligonychus ununguis)
🦠 Maladies: Cypress canker / Seiridium canker (Seiridium cardinale, Seiridium unicorne), Phytophthora root rot (Phytophthora spp.), Armillaria root rot (Armillaria mellea), Botryosphaeria canker (Botryosphaeria spp.)

📝 Conseils d'Expert

🌱 Conseil Sol:

Plant in freely draining soil (sandy/gravelly loam preferred). Avoid waterlogged sites; amend heavy soils by incorporating coarse sand/gravel and perlite to improve drainage and aeration. In containers, use a gritty potting mix and ensure large drainage holes.

🌾 Conseil Semis:

Propagation is usually by seed or semi-ripe cuttings. For seed: collect mature cones, dry them to release seed, and cold-stratify (about 4–8 weeks at 1–5°C) to improve germination. Sow in a free-draining seed compost (often with added sand/grit) in pots or seed trays, covering seed lightly. Keep evenly moist (not waterlogged) in bright light; protect from severe frost and drying winds. Prick out seedlings when large enough to handle and pot on; harden off before planting out. Plant container-grown young trees in autumn or spring into well-drained soil; avoid waterlogging and provide shelter from strong coastal winds until established.

🧪 Conseil Engrais:

Feed lightly in spring with a balanced slow-release granular fertilizer if growth is weak or foliage pales; avoid heavy nitrogen that can produce soft, wind-prone growth. Use organic mulch (and sea-based fertilizers where appropriate) to support steady nutrient release; do not fertilize late in the growing season.

🍂 Conseil Paillage:

Apply a 5–8 cm layer of bark or wood chips over the root zone to conserve moisture and moderate soil temperature; keep mulch 10–15 cm away from the trunk to reduce crown and bark rot risk. Replenish annually as it breaks down.

🏗️ Conseil Tuteurage:

Stake only if exposed to wind or if the rootball is unstable. Use one or two low stakes with flexible ties, allowing slight movement to promote trunk strength; avoid tight ties and rubbing. Check ties regularly and remove staking after the first growing season (or once well rooted).

✂️ Taille:

Prune minimally. Remove dead, diseased, or crossing branches as needed; light shaping can be done in late winter to early spring or in mid-summer. Avoid cutting back hard into old, leafless wood as regeneration is poor. For hedges, trim regularly to maintain a slightly tapered profile (wider at the base).

Tags: #Cupressus macrocarpa#Monterey Cypress#evergreen#conifer#tree#ornamental#windbreak#screening#hedge#coastal#salt-tolerant#wind-tolerant

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