Intermediate
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Ridolfia segetum (False fennel)
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2 hours care
per year
per year
1m
Max height
Max height
0.3m
Max spread
Max spread
1 year
To maturity
To maturity
Plant details
Botanical name
Ridolfia segetum
Other names
False fennel, Goldspray, Corn parsley, False caraway, Carum segetum, Foeniculum segetum, Petroselinum segetum, Sison segetum
Genus
Ridolfia Ridolfia
Species
R. segetum - R. segetum is an erect, aromatic annual with finely-divided, grey-green leaves and branching stems bearing compound umbels of tiny, bright yellow to bright yellow-green flowers from summer into autumn.
Ridolfia segetum is: Deciduous
Fragrance
Foliage is aromatic.
Habit
Erect, Branching
Flower
Bright-yellow, Yellow-green in Summer; Yellow-green, Bright-yellow in Autumn
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Specific pests
Aphids Aphids
Diseases
Generally disease free.
General care
Pruning
May require staking.
Propagation
Sow in situ in mid-spring or sow under glass from late winter to mid-spring.
Propagation methods
Seed
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Where to grow
Ridolfia segetum (False fennel) will reach a height of 1m and a spread of 0.3m after 1 year.
Suggested uses
Flower Arranging, Flavouring food and drinks, Cottage/Informal, Beds and borders, Add to salads, Wildflower, Wildlife
Cultivation
Grow in fertile, well-drained, preferably neutral soil in a sunny, sheltered site.
Soil type
Loamy, Sandy
Soil drainage
Well-drained, Moist but well-drained
Soil pH
Neutral
Light
Full Sun
Aspect
South, West
Exposure
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
Ridolfia segetum
Other names
False fennel, Goldspray, Corn parsley, False caraway, Carum segetum, Foeniculum segetum, Petroselinum segetum, Sison segetum
Genus
Ridolfia Ridolfia
Species
R. segetum - R. segetum is an erect, aromatic annual with finely-divided, grey-green leaves and branching stems bearing compound umbels of tiny, bright yellow to bright yellow-green flowers from summer into autumn.
Foliage
Deciduous
Fragrance
Foliage is aromatic.
Habit
Erect, Branching
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Colour
Flower
Bright-yellow, Yellow-green in Summer; Yellow-green, Bright-yellow in Autumn
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Specific pests
Diseases
Generally disease free.
General care
Pruning
May require staking.
Propagation
Sow in situ in mid-spring or sow under glass from late winter to mid-spring.
Propagation methods
Seed
Monthly care advice
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Where to grow
Ridolfia segetum (False fennel) will reach a height of 1m and a spread of 0.3m after 1 year.
Suggested uses
Flower Arranging, Flavouring food and drinks, Cottage/Informal, Beds and borders, Add to salads, Wildflower, Wildlife
Cultivation
Grow in fertile, well-drained, preferably neutral soil in a sunny, sheltered site.
Soil type
Loamy, Sandy
Soil drainage
Well-drained, Moist but well-drained
Soil pH
Neutral
Light
Full Sun
Aspect
South, West
Exposure
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, Zone 4
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Loamy, Sandy | Tell us... |
| Soil drainage: | Well-drained, Moist but well-drained | Tell us... |
| Soil pH: | Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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