All Osmanthus varieties
Osmanthus variety
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Devilwood

Tree
Full sun to part shade

Also known as: Osmanthus americanus · Wild Olive

What's special about Devilwood

Native southern evergreen with fragrant white flowers.

Growing this variety

Devilwood follows the same growing basics as Osmanthus. Variety-specific maturity above; everything else below applies to the whole Osmanthus family.

Season
See genus notes — sow in appropriate season for zone
USDA zones
8–11 (needs frost-free winters below about 15°F/−9°C)
Sun
Full sun to part shade
Start indoors
8–10 weeks before last frost (or per species)
Direct sow outdoors
After last frost, or fall for stratifiers
Days to harvest
3–5 years from a cutting-grown tree; 8–12 years from seed

Germination

Germination time
30–120 days, often uneven — some seed waits until a second spring.
Soil temperature
60–75°F (15–24°C)

Spacing & depth

Sow depth
Crack or scarify the pit, soak, then sow 1/2–1 in (12–25 mm) deep. Germination is slow and erratic.
Seed spacing
Space in flats or direct-sow rows
Mature plant spacing
Space to the mature spread — 15–25 ft (4.5–7.6 m)
Row spacing
Leave walking room — at least the plant's mature width between rows

How to plant

Consult species-specific guidance. Most benefit from good drainage, patience, and matching zone.

Grower's tip

Evergreen shrubs and small trees valued for extraordinary flower fragrance.

Woody plant facts

USDA zones
8–11 (needs frost-free winters below about 15°F/−9°C)
Mature height
20–30 ft (6–9 m); kept to 12 ft in cultivation
Mature spread
15–25 ft (4.5–7.6 m)
Years to fruit
3–5 years from a cutting-grown tree; 8–12 years from seed
Chill hours
200–300 hours below 50°F to set flower buds — olives will not fruit in a warm tropical winter
Pollination
Many cultivars are partly self-fertile, but a second variety roughly doubles fruit set.
Rootstock
Usually grown on its own roots from cuttings — seedling olives are slow and variable.
Planting depth for seed
Crack or scarify the pit, soak, then sow 1/2–1 in (12–25 mm) deep. Germination is slow and erratic.
Soil pH
6.0–8.0 — tolerates alkaline and rocky ground
Disease & problem notes
Olive knot and verticillium wilt. Avoid pruning in wet weather and never plant where tomatoes or cotton grew.

Soil preferences

Soil type

Deep, well-drained native soil. Avoid amending the planting hole heavily — roots should learn to grow into the surrounding earth.

pH range

5.5–7.5 depending on species (conifers lean acidic; most hardwoods neutral).

Amendments

Top-dress with compost and mulch in a wide ring; don't backfill with pure compost.

Watering

Frequency

Deep soak weekly the first two years while roots establish; taper once the tree self-supports.

Method

Slow trickle at the drip line, not the trunk. A 5-gal bucket with a pinhole is ideal.

Over vs. under

Overwatered: yellowing, root rot, mushroom collar. Underwatered: leaf scorch, early leaf drop.

Top-water or bottom-water?

Prefers top-watering — Trees are always top-watered — deep slow soak at the drip line, never at the trunk. Bottom-watering only makes sense for nursery seedlings.

Temperature tolerance

Ideal daytime air temp

Broad — most species tolerate 40–90°F once established

Ideal nighttime air temp

Down to species-rated USDA zone minimum

Frost sensitivity

Hardy once established; young seedlings need protection their first winter.

Special germination requirements

Most temperate tree seed needs cold stratification (30–120+ days at 34–41°F) — see each species entry for the exact time.

Container growing

Container-suitable?

Possible with the right cultivar

Recommended pot size

Deep tree pots (root trainers) for the first 1–2 seasons; permanent site required for full growth.

Notes

Only dwarf, patio, or bonsai forms live long-term in containers.

Detailed harvesting

Not applicable for ornamental/timber trees. Nut and fruit species — pick when they drop naturally.

Post-harvest storage & preservation

Nuts: keep damp and cool, sow promptly. Winged/coned seed: dry, cool, dark in a sealed jar.

Culinary, medicinal & other uses

Shade, windbreak, wildlife habitat, timber, ornament, and long-term carbon storage.

Medicinal or traditional uses are shared for interest only — this is not medical advice. Consult a qualified professional before using any plant medicinally.

Seed saving

Pollination

Wind- or insect-pollinated; seedlings rarely match the parent exactly (especially named cultivars — those must be grafted or cutting-grown).

Isolation needs

Not practical for trees. Expect variation.

How to save

Collect fully ripe seed in fall, clean, dry or keep damp per species, then cold-stratify before spring sowing.

Your zone's planting calendar

Pick your USDA hardiness zone and we'll estimate the key dates for osmanthus in your area. These are regional averages — always check your own last-frost forecast before sowing.

My Devilwood Osmanthus notes

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Devilwood Osmanthus seeds on hand

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