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Glandularia Seabrook's Lavender - Florist's Verbena

Glandularia hybrida Seabrook's Lavender
Florist's Verbena

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A beautiful annual plant with flowers ranging from pinkish-purple to lavender-pink, with a dark centre. They are pleasantly fragrant and cover a creeping and erect clump of light green foliage. It is ideal for pots and hanging baskets and can be tucked in between perennials in borders. It blooms from June to October. It tolerates drought and poor soils, and prefers very sunny positions.
Flower size
1 cm
Height at maturity
40 cm
Spread at maturity
50 cm
Exposure
Sun
Hardiness
Hardy down to -6°C
Soil moisture
Dry soil, Moist soil
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Best planting time April to May
Recommended planting time March to June
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Flowering time June to October
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Description

Glandularia 'Seabrook's Lavender', also marketed as 'Sealav', is a perennial and frost-tender plant, grown as an annual. After planting, it quickly forms a bushy and creeping clump of light green foliage, which is soon covered with umbels of lavender-pink flowers with dark centres, that are also fragrant. It is best planted in full sun in pots and hanging baskets, or in summer borders. Even though it only lasts one year, it is a generous and undemanding plant that tolerates drought, watering neglect, and poor soils.

Glandularia 'Seabrook's Lavender' belongs to the Verbenaceae family and is a horticultural hybrid whose ancestors inhabited the hot regions of South America. This plant forms a compact and trailing clump, reaching a height of 40 cm (16in) and spreading about 50 cm (20in). It tirelessly produces upright and gracefully trailing stems, which lengthen as dense clusters of tiny lavender-pink flowers with dark centres bloom, resembling phlox flowers. This perennial plant succumbs to frost, so it is grown as an annual in our climate.

Garden verbenas are plants for somewhat neglectful or absent gardeners rather than meticulous gardeners. They suffer from excessive watering or feeding, but not from occasional watering neglect. They are superb annuals for hanging baskets or for filling in between various perennial plants in containers or borders, thanks to their trailing and upright habit. Their fragrant flowers are very decorative. In pots, combine them with other annuals such as morning glories, pelargoniums, and scaevola, along with carex grasses.

Note: Please be aware that our plug plants are products intended for experienced gardeners: upon receipt, transplant and store them in a sheltered location (veranda, greenhouse, cold frame...) at a temperature above 14°C (57.2°F) for a few weeks before being planted outdoors once all risk of frost has passed.

 

Glandularia Seabrook's Lavender - Florist's Verbena in pictures

Glandularia Seabrook's Lavender - Florist's Verbena (Flowering) Flowering

Flowering

Flower colour pink
Flowering time June to October
Inflorescence Umbel
Flower size 1 cm
Fragrance slightly scented
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Annual
Foliage colour green

Plant habit

Height at maturity 40 cm
Spread at maturity 50 cm
Growth rate normal

Botanical data

Genus

Glandularia

Species

hybrida

Cultivar

Seabrook's Lavender

Family

Verbenaceae

Other common names

Florist's Verbena

Origin

Cultivar or hybrid

Planting and care

Plant your Glandularia in a sunny position. They need light and humus-bearing soil and appreciate a moderate supply of fertiliser and water. They tolerate rather dry soil quite well. You can plant your Glandularia in a pot, in hanging baskets or in other containers. In pots, they should be watered regularly, but not excessively, allowing the surface to dry between two waterings. They are usually grown as annuals, but they are actually delicate perennials: by bringing them indoors at the first frost, you can extend their flowering during autumn and winter. Outdoor cultivation is possible by the seaside, with good winter mulching and protecting the crown from moisture with plastic. Prune lightly in March.

Planting period

Best planting time April to May
Recommended planting time March to June

Intended location

Suitable for Meadow, Rockery
Type of use Border, Edge of border, Container, Slope, Conservatory
Hardiness Hardy down to -6°C (USDA zone 9a) Show map
Ease of cultivation Amateur
Planting density 6 per m2
Exposure Sun
Soil pH Any
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, well-draining, not too rich

Care

Pruning instructions Plan for a light pruning in March.
Pruning No pruning necessary
Disease resistance Very good
Overwinter Needs to be stored

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