Verbena bonariensis aka Purpletop Vervain
Taxonomy
Common names
Purpletop Vervain, Argentine Vervain, South American VervainHow to care for Purpletop Vervain
Difficulty
Purpletop Vervain requires a bit more attention and knowledge to thrive, making it a suitable plant for those with some gardening experience.
Water
Purpletop Vervain should be watered regularly, allowing the soil to dry out between waterings.
Soil
Purpletop Vervain loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.
Lighting
Purpletop Vervain requires abundant, bright and direct light. Placing it less than one foot from a window is the best way to make sure the plant receives enough light to survive and thrive. Depending on your region, however, the current weather can affect the placement of the plant in your home. For example, in some areas the sun may be too direct and intense, so it's best to place it farther away from the window. You may also need to adjust your placement according to the season as the sunlight can change intensity over the course of the year. If you live in a region with significant temperature fluctuations, such as a desert, you may need to place the plant a bit farther away from the window to avoid extreme heat or cold. With some care and attention, your Purpletop Vervain will be sure to bring you many years of beauty and enjoyment.
Toxicity
Ploi's records do not contain confirmed information on the toxicity of this particular plant. In the event of accidental ingestion of plant material with questionable toxicity by you, a family member, or a pet, it is always a good idea to consult a healthcare professional.
Fertilizer
The Purpletop Vervain should be repotted either when it doubles in size or annually, whichever comes first. Providing new potting soil with all the vital nutrients annually is enough to support the growth of the plant, and thus, there is no need for fertilizer. Remember that plants derive their energy from the sun, not fertilizer.
Growth-pattern
New growth will sprout from the top of the plant as it grows upwards.
More info:
Wikipedia