
Green Alkanet
Pentaglottis sempervirens
Family: Boraginaceae
Green Alkanet grows in partial shade and prefers moist, rich soil. Water needs: Moderate.
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How to Grow Green Alkanet
Green Alkanet growing information includes sunlight requirements of Partial shade, soil conditions listed as Moist, rich soil with a soil pH of 5.5-7.0, and Moderate water needs. The listed hardiness zones are 5-9. For propagation reference, the database lists germination or establishment information for Green Alkanet as 14-30 days, with planting or establishment depth listed as 1/8 inch. Days to maturity are listed as 90-140 days.
Plant Overview
Green Alkanet (Pentaglottis sempervirens) is listed in the Boraginaceae family and categorized as a flower 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 Easy.
- Plant ID
- PLT-4045
- Family
- Boraginaceae
- Plant type
- Flower
- Life cycle
- Perennial
- Difficulty
- Easy
Growing Conditions
Green Alkanet is listed for partial shade conditions. Water needs are listed as moderate. The database soil reference is Moist, rich soil. The listed soil pH range is 5.5-7.0, and the listed hardiness range is 5-9.
- Hardiness zones
- 5-9
- Sunlight
- Partial shade
- Soil
- Moist, rich soil
- Soil pH
- 5.5-7.0
- Water needs
- Moderate
Seed & Germination
For seed starting, the listed germination time is 14-30 days and the seed depth is 1/8 inch. The listed time to maturity is 90-140 days. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 14-30 days
- Seed depth
- 1/8 inch
Harvest & Propagation
- Days to maturity
- 90-140 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.




