Marrubium supinum
Horehound
Horehound has crinkled, scalloped edged, downy foliage, and all through Summer and into Autumn spires of lilac-coloured flowers that are attractive to bees.
Contributed by @franshinegee
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Full sun
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Occasional watering
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Frost Hardy: 23F (-5°C)
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Moist and free draining
Common name
Horehound
Latin name
Marrubium supinum
type
Perennial Herb
family
Lamiaceae
ph
5.5 - 8.5 Acid - Neutral
Plant & bloom calendar
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Best time to plant
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When the plant will bloom
full grown dimensions
Marrubium supinum
Horehound has crinkled, scalloped edged, downy foliage, and all through Summer and into Autumn spires of lilac-coloured flowers that are attractive to bees.
Flowering
From Early Summer TO Mid Autumn
Hermaphrodite (having both male and female ) flowers are positioned in the leaf-axels - nettle-like, from early Summer to early / mid Autumn.. Flowers appear anywhere between April and October, depending on the location. The flowers are pollinated by bees
Propagating by seed
From Early Spring TO Mid Spring
Sow seeds in a pot or tray filled with proprietary seed-sowing compost, or a 50/50 mix of multi-purpose compost and perlite or coarse grit. Sow large seeds with space between the seeds, and sow small seeds thinly, and cover the seeds with a thin layer of sieved compost (unless it is a type of seed that needs light to germinate). Water gently with a fine rose on the watering-can, allowing excess water to drain away.
Planting
From Mid Spring TO Late Spring
When seedlings are big enough to handle, and after last frosts, plant out into a sunny site (horehound cannot grow in shade,) in moist but free-draining soil. Water to establish the plant