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Hardy Rosewood

Tree
Spring
Full sun

Also known as: Dalbergia hupeana · Hardy Rosewood Tree

When & where

Season
Spring
USDA zones
7–10
Sun
Full sun
Start indoors
Not recommended
Direct sow outdoors
Spring after scarification
Days to harvest
N/A — ornamental timber tree

Germination

Germination time
14–45 days
Soil temperature
70–85°F (21–29°C)

Spacing & depth

Sow depth
1/2" (12 mm)
Seed spacing
1 seed per deep pot
Mature plant spacing
20–30 ft (6–9 m)
Row spacing
25 ft (7.5 m)

How to plant

Scarify or soak seeds overnight, then sow in deep pots of well-drained mix. Protect from frost while young.

Pre-sow treatment

Soak / scarify

Soak in warm water 24 hours or nick the seed coat.

Grower's tip

Deciduous Chinese tree in the rosewood family; valued for fragrant flowers and fine timber.

Woody plant facts

USDA zones
7–10
Mature height
40–70 ft (12–21 m) for most shade trees
Mature spread
30–50 ft (9–15 m) — set the planting distance to the mature canopy, not the sapling
Pollination
Wind-pollinated. A single tree sets seed once mature, but a second tree nearby improves seed fill.
Planting depth for seed
Sow large nuts and acorns 1–2 in (2.5–5 cm) deep; winged or small tree seed 1/4–1/2 in (6–12 mm).
Soil pH
6.0–7.0
Disease & problem notes
Keep mulch off the trunk, water deeply rather than often, and prune in dormancy to limit canker and rot entry points.

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 — Top-water deeply at the base in the morning. Wet leaves at night cause blackspot and powdery mildew.

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 hardy rosewood in your area. These are regional averages — always check your own last-frost forecast before sowing.

My Hardy Rosewood notes

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