25 Seeds Purpletop Vervain Seeds - Clusters of Deep Lilac Flowers Are Very Showy!!! Wow! "Verbena bonariensis" Purpletop Vervain This tender perennial is grown as an annual in most gardens. Easily grown from seed, and self-sows in mild climates. Clusters of deep lilac flowers are very showy atop tall stems, attracting butterflies and hummingbirds. Most of the leaves are at the base, making this a lovely 'see-through' plant to mix in with other flowers. Multiple, long, thin stems topped with clusters of 2" heads packed with tiny flowers. Blooms July to frost. Attracts butterflies. Also known as purple top verbena, tall verbena, South American vervain, and purple-top verbena. Perennial in Zones 7-10 but can be grown as an annual. Ht. 36-48". This Verbena offers 2-inch balls of rich lavender. The blooms bob atop long, sturdy stems on plants 2 to 4 feet tall, blooming from early summer until frost in the sunny garden. A species Verbena, this tender perennial offers months of garden color both from the big blooms and from the finely-cut dark green foliage. Good tolerance of heat and drought means even longer, more perfect bloom. And when it finds a place it likes, it self-sows freely! Grown as an annual north of its hardiness range, V. bonariensis is a staple of the cottage garden, cutting garden, and meadow. It tolerates poor soils beautifully, asking only for good drainage and plenty of sunshine. Our seeds/bulbs are guaranteed to be fresh but are NOT guaranteed as to results. Sorry, but there are too many variables in gardening that can impact germination. Flower seeds/bulbs are a live organism. Their germination depends on many factor including heat, cooling, sun, shade, moisture, time of sowing, etc. None of these things We can control so We can not be held responsible for them. So please do not ask for a refund, replacement or to return unused seeds/bulbs.