Hesperis matronalis

Hesperis matronalis

Sweet rocket

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does flower in May

Plant does flower in June

Plant does not flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

  • Botanical name: Hesperis matronalis
  • Common name: Sweet rocket
  • Family: Brassicaceae
  • Plant Type: Biennial
Flower colour:

Purple

White

Foliage colour:

Green

Sweet rocket, Hesperis matronalis, is a pretty annual, bearing white or purple flowers similar to honesty. A packet of sweet rocket seeds is likely to produce flowers varying in colour from deep rich purple, through all the paler lilac shades to white – leave them to seed themselves and they will maintain this diversity indefinitely, gradually naturalising over a large area.

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The flowers’ fragrance is as sweet as a violet’s, and most pronounced in the evening. It looks good when allowed to drift, naturally through an informal sunny or partially shaded border, especially in a cottage garden or wildlife garden scheme.

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Sow Hesperis matronalis seed in late-spring where you want it to flower. Deadhead spent blooms to prolong flowering, but allow some flowers to develop seeds so plants can self-seed around the garden.

How to grow Hesperis matronalis

  • Plant size

    100cm height

    45cm spread

  • Aspect

    North facing, east facing, south facing, west facing

  • Position in border

    Middle

  • Sun exposure: Full sun, dappled shade, partial shade
  • Hardiness: Hardy
  • Soil type: Well drained / light / sandy

Plant calendar

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sow
Sow

Do not Sow in January

Do not Sow in February

Do not Sow in March

Do not Sow in April

Do Sow in May

Do Sow in June

Do Sow in July

Do not Sow in August

Do not Sow in September

Do not Sow in October

Do not Sow in November

Do not Sow in December

Plant
Plant

Do not Plant in January

Do not Plant in February

Do not Plant in March

Do not Plant in April

Do Plant in May

Do Plant in June

Do not Plant in July

Do not Plant in August

Do not Plant in September

Do not Plant in October

Do not Plant in November

Do not Plant in December

Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does flower in May

Plant does flower in June

Plant does not flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

Hesperis matronalis and wildlife

Hesperis matronalis is known for attracting bees, beneficial insects, butterflies​/​moths and other pollinators. It has nectar/pollen rich flowers and is a caterpilar food plant.

Attractive to Bees

Attractive to Beneficial insects

Does not attract Birds

Attractive to Butterflies​/​Moths

Attractive to Other pollinators

Is Hesperis matronalis poisonous?

Hesperis matronalis has no toxic effects reported.

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Cats

No reported toxicity to Dogs

No reported toxicity to Horses

No reported toxicity to Livestock

No reported toxicity to People