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Verbena bonariensis (Purpletop Vervain)

£8.75 GBP

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A tall, airy perennial that adds delicate height and movement to borders with its slender stems topped by clusters of small, bright purple flowers from summer through autumn. The see through quality of its growth habit allows it to weave beautifully among other plants without overwhelming them, creating lovely vertical accents. A magnet for butterflies and bees, it thrives in full sun and well drained soil, often self seeding gently around the garden. Perfect for adding structure to cottage garden schemes or prairie style plantings, where its long flowering season and informal charm can be fully appreciated. A versatile plant that combines well with grasses and other perennials while requiring minimal care.

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Verbena bonariensis (Purpletop Vervain)

Family of Trees: Verbenaceae

Habit: Herbaceous Perennial

Growth Rate: 60 to 120 cm/year

Optimal Temperature: 15-25°C, hardy to -10°C

Harmful if Eaten?: Non-toxic

Flowers or Berries: Purple Flower Clusters

Hardiness: H4 (Moderately Hardy)

Hardiness ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

○ H1a: under glass all year (>15C)
○ H1b: can be grown outside in the summer (10 - 15)
○ H1c: can be grown outside in the summer (5 - 10)
○ H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
○ H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
○ H4: hardy through most of the UK (-10 to -5)
○ H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
○ H6: hardy in all of UK and northern Europe (-20 to -15)
○ H7: hardy in the severest European continental climates (< -20)