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Gratiola officinalis (Hedge hyssop)
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1 hour care
per year
per year
0.4m
Max height
Max height
0.4m
Max spread
Max spread
2 years
To maturity
To maturity
Low
Toxicity
Toxicity
Plant details
Botanical name
Gratiola officinalis
Other names
Hedge hyssop, Herb of grace
Genus
Gratiola Gratiola
Species
G. officinalis - G. officinalis is a tall, rhizomatous perennial herb native forming linear-lanceolate leaves and small yellowish-white flowers.
Gratiola officinalis is: Deciduous
Habit
Erect
Toxicity
All parts are poisonous if ingested.
Flower
Flushed pink, White in Summer
Foliage
Grey-green in Summer
How to care
Watch out for
General care
Pruning
Cut back after leaves have died down in autumn.
Propagation
Divide in spring. Sow seed in a cold frame in spring.
Propagation methods
Division, Seed
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Where to grow
Gratiola officinalis (Hedge hyssop) will reach a height of 0.4m and a spread of 0.4m after 2 years.
Suggested uses
Beds and borders, Bog garden, Coastal, Cottage/Informal, Waterside, Wildlife
Cultivation
Grow in humus-rich, moist, alkaline soil in sun. Suitable for growing along pond margins.
Soil type
Clay, Loamy, Sandy
Soil drainage
Boggy damp conditions, Moist but well-drained, Moisture-retentive
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Gratiola officinalis
Other names
Hedge hyssop, Herb of grace
Genus
Gratiola Gratiola
Species
G. officinalis - G. officinalis is a tall, rhizomatous perennial herb native forming linear-lanceolate leaves and small yellowish-white flowers.
Foliage
Deciduous
Habit
Erect
Toxicity
All parts are poisonous if ingested.
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Colour
Flower
Flushed pink, White in Summer
Foliage
Grey-green in Summer
General care
Pruning
Cut back after leaves have died down in autumn.
Propagation
Divide in spring. Sow seed in a cold frame in spring.
Propagation methods
Division, Seed
Monthly care advice
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Where to grow
Gratiola officinalis (Hedge hyssop) will reach a height of 0.4m and a spread of 0.4m after 2 years.
Suggested uses
Beds and borders, Bog garden, Coastal, Cottage/Informal, Waterside, Wildlife
Cultivation
Grow in humus-rich, moist, alkaline soil in sun. Suitable for growing along pond margins.
Soil type
Clay, Loamy, Sandy
Soil drainage
Boggy damp conditions, Moist but well-drained, Moisture-retentive
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6, Zone 5
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Clay, Loamy, Sandy | Tell us... |
| Soil drainage: | Boggy damp conditions, Moist but well-drained, Moisture-retentive | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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