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Rosie Posie Anise Hyssop

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Hot pink to magenta hued blooms on bright green, medium tall square stems with lance-shaped toothed leaves describes Agastache Rosie Posie to a ‘T’. A member of the mint family, this fragrant leafed plant will be a favorite in a children’s garden, pollinator garden or your informal cottage gardens. Tall flower spikes sway in the wind like wheat, creating movement in the sea of green and pink. Pair these lovely perennials with coreopsis, yarrow and rosemary for a lively colored, scented garden.

Native to North America, Agastache finds its home in prairie lands, meadows and higher elevation forest lands and fields. It is often found in rocky soils and makes a beautiful addition to a rock garden in your landscape. Hardy in Zones 6-9, it thrives in full sun and humidity. It has a sweet anise scent when you brush the leaves, although the flowers have no scent. Once established in your garden it is an easy to care for perennial that will eventually spread out and fill in any space you want to assign it to.

Rosie Posie Anise Hyssop Care

Plant your agastache in full sun for best flowering performance. It can take the heat and will continue to bloom in summer until early fall even in the hottest sun regions. Well draining soil is a must. Its native habitat is typically rocky soil which drains extremely fast. It does require regular watering, though, so water deeply at the root level when the top inch of soil is dry. Avoid wetting the leaves any more than you have to to discourage any fungal diseases. Typical soil pH is 6.0 to 8.0, slightly acidic to slightly alkaline, so you have a lot of latitude there. Give an application of a well balanced slow release, low nitrogen fertilizer, like a 10-10-10, to encourage lush growth without the sacrifice of flowers.

Deadheading is encouraged to extend bloom time and keep plants from going to seed. Seeds in hybrid varieties rarely produce true, so rely on dividing the roots every three years or so for best division of plants. These vigorous plants grow on rhizomes that can spread throughout your garden bed once they are fully established, so root ball division is not only a great way to get more plants, it is a necessity to prevent them from taking over your garden. Cut plants down by half at the end of the season to allow new growth in the spring room to grow. It will not hurt the plant and will help keep things looking tidy for you.

Rosie Posie Anise Hyssop Spacing

For best performance and reduction in plant fungal disease, space your agastache at least 24 to 30 inches apart from other plants. At maturity they can reach 22 inches tall and spread out 30 inches wide. Use a good pine mulch on the root zone of the plant for overwintering protection. Keep mulch back from the stems a bit to prevent crown rot. With care you will enjoy these beautiful hot pink flowers year after year.

Click here for more information on plant container sizes.

Plant Addict Guarantee (Included On All Plant Orders)

Plant Addicts guarantees your plant(s) will arrive happy and healthy, but the plant(s) are being shipped through the mail and accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.

For information on how to care for you new plant please check out our guide. Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty whether youÔÇÖre new or an expert. There are many variables outside our control and yours that can cause the demise of your plant(s). Examples would be hungry animals, drought, poor soil conditions, over watering, disease, insects & many other factors. The Plant Addicts Warranty is a 1 year warranty protecting you from all the unknowns and will replace your plant if it moves on to the plant afterlife.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant purchase. We will cover 100% of the price of the plant but the warranty does not cover shipping cost. Simply let us know if your plant has died within one year of receiving it and weÔÇÖll get you a new one shipped out. We may ask for photos for documentation purposes but again weÔÇÖll try to make it as easy as possible.

For more information, please go to our Shipping & Returns page at the bottom of the website.

Guide: How to Care for Your New Plant(s)

Planter Shipping

Standard Colors: 2-3 business days

Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On special orders there can not be any cancellations

Plant Shipping

Time of Order:

Summer Shipping

  • If there is extreme heat we’ll delay shipping.  
    • We’ll have to review what areas the plants are traveling through along with your location

Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.

It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.