Japanese Tree Lilac Seeds, PERENNIAL

Zones: 4 to 7
Mature Height: 30 feet
Mature Spread:25 feet

The Japanese Tree Lilac is the largest of the lilacs having large creamy white flower clusters. The leaves are dark green and have grayish undersides and yellow fall colour. Native to Japan. A stunning specimen tree.

When choosing a location, keep in mind that the Japanese Tree Lilac has a moderate growth rate. It grows up to 30 feet in height and 25 feet in spread. It can be planted in zones 4 to 7. Prefers full sun and well-drained, neutral to acidic soil. Tolerant of drought once established.

How To Start These Seeds: Stratification Requirement: 30-90 days cold moist stratification.
Scarification: Soak in water, let stand in water for 24 hours
Stratification: Warm stratify for 60 days, cold stratify for 60 days
Germination: Sow seed 1/16 inch deep, tamp the soil, mulch the seed bed.
Other: Simply giving the seed a 90-day cold stratification may break dormancy.

Indoor Planting: If your seeds require stratification or scarification – do the recommended pretreatment before planting indoors. Planting Instructions: Fill a container with seed starting mix to about ½ inch from the top. Place your seeds 1 inch to 1 ½ inches below the soil surface. Gently water your seeds to keep moist, not soaking wet. Heat & humidity is critical for germination. Germination may occur in 1 week or as long as 3 months (depending on the species). Place the seed container on a heat mat under growing light(s). Keep your growing lights on 14 hours per day. Keep your heat mat on 24 hours per day. Once your seeds germinate, move each seed into its own container under the growing lights and on the heat mat. Keep your seedlings indoors for 2-3 months before transplanting outdoors in the spring (May to June).

Outdoor Planting: If your seeds do not require stratification: the best time to plant tree and shrub seeds outdoors is after the last frost in your area (spring). In the Northern states – the best time to plant seeds outdoors is from May to June. If your seeds require pretreatment: you should plant your seeds outdoors before the ground freezes in your area (late September to early November). Your seeds will naturally stratify during the cold winter. Germination usually occurs in May or during the spring season.