Elevate your gardens with our Verbena Bonariensis Purple Top Vervain Plant Pots. Also known as Purple Top or Argentinian vervain, this plant is one of the longest-lasting plants in the garden, with flower heads persisting right into the depths of winter, providing much-needed interest. Ideal as a filler in borders, it is transparent, allowing other plants to shine through, and one of the best plants around to add structure to the border and attract a host of pollinating insects to the garden. Recommended by the RHS as a 'plant for pollinators', the flowers are produced through the summer and autumn and are a favourite with butterflies and bees. These plants are supplied as three established plants in 9cm pots. Please note: The height of the delivered plants will vary with the time of year and therefore 'as supplied' images are an indication only. All heights given include the height of the growing container. Plants are dormant from October to March so may show no leaves in the pot. Planting instructions: Grows: 200 x 75cm. Plant: March to November. Flowers: June to October.