Verbena Bonariensis
$5.25
Butterflies are magnetically drawn to these graceful, violet coloured beauties! Grows 36-48″ (91 – 122cm) with 2″ clusters of flowers which create an airy violet cloud above the other blooms.
Good cut flower. Awarded the RHS Award of Garden Merit
Description
Blooms July to frost. Also known as purple top verbena, tall verbena, South American vervain.
Pre-treatment. Cold/moist stratification before planting. Either place the seeds with a little moistened medium in a plastic bag and place in the fridge for 2-4 weeks, then sow as usual. (or place the entire tray in the cold) or Sow very finely, just cover with a sprinkling of soil (1/16th”). Placing seed trays on a heat mat during the day and remove at night encourages germination. Alternating temperatures between 60°F (16°C) at night and 86°F (30°C) during the day helps to break dormancy.
Slow to germinate- keep growing medium dry side until emergence. Germination is erratic, around 14 to 28 days, but may take up to 90 days to finish germinating (especially if seeds havent experienced cold stratification).
Transplant outside after the last frost 30-45cm (12-18?) apart, full sun, part shade. Blooms first year & will usually self sow. Great for winter sowing projects!
Harvest when the outer 2-4 layers of flowers are open. annual. It will sometimes overwinter here in Zone 5 with lots of snow cover or mulch for protection.
Approx 100 seeds
Kat Granger –
Marj Oneschuk – February 22, 2024
Order processed and received in a timely manner.. So glad they carry Verbena Bonariensis, monarchs will be happy!! And so happy that they ship small orders for a reasonable amount!
Kat Granger –
Michelle (verified owner) – October 1, 2023
First year growing these and I love them. Took a while to germinate but have grown so well. At least 4 foot high, branching with the most beautiful long lasting flowers. Still flowering now (September 30) despite a few nighttime frost. Absolutely maintainable free. I live in Alberta and this plant has attracted butterflies, bumblebees and hoverflies. The hummingbird that regularly visited our yard also found it intriguing. Love this plant and will grow it every summer from now on.
Kat Granger –
Bonnie (verified owner) – November 18, 2023
I planted verbena bonariensis two years ago when we moved to BC. Our soil here is scruffy, rocky and nutrient deficient. It has self seeded happily and looks beautiful with the Russian sage planted with it. Flowered until we got the first snowfall in October