Japanese Sweetspire
Itea japonica
Family: Iteaceae
Japanese Sweetspire grows in partial sun and prefers moist woodland soil. Water needs: Moderate.
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How to Grow Japanese Sweetspire
Japanese Sweetspire growing information includes sunlight requirements of Partial sun, soil conditions listed as Moist woodland soil with a soil pH of 5.0-7.5, and Moderate water needs. The listed hardiness zones are 6-9. For propagation reference, the database lists germination or establishment information for Japanese Sweetspire as 21-60 days, with planting or establishment depth listed as 1/4 inch. Days to maturity are listed as 240-365 days.
Plant Overview
Japanese Sweetspire (Itea japonica) is listed in the Iteaceae family and categorized as a shrub with a perennial life cycle. This profile summarizes growing information for hardiness, light, soil, water, seed starting, maturity, and other available cultivation details. Difficulty is listed as Moderate.
- Plant ID
- PLT-4998
- Family
- Iteaceae
- Plant type
- Shrub
- Life cycle
- Perennial
- Difficulty
- Moderate
Growing Conditions
Japanese Sweetspire is listed for partial sun conditions. Water needs are listed as moderate. The database soil reference is Moist woodland soil. The listed soil pH range is 5.0-7.5, and the listed hardiness range is 6-9.
- Hardiness zones
- 6-9
- Sunlight
- Partial sun
- Soil
- Moist woodland soil
- Soil pH
- 5.0-7.5
- Water needs
- Moderate
Seed & Germination
For seed starting, the listed germination time is 21-60 days and the seed depth is 1/4 inch. The listed time to maturity is 240-365 days. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 21-60 days
- Seed depth
- 1/4 inch
Harvest & Propagation
- Days to maturity
- 240-365 days
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Growing Reference Note
Plant performance can vary with climate, soil, weather, cultivar, seed quality, and gardening methods. The values on this page are general database reference ranges rather than a substitute for local extension guidance or seed-packet instructions.