Agastache 'ROSIE POSIE'

Agastache 'ROSIE POSIE'
agastache, hyssop
SIZE/TYPE mid-sized perennial
USUAL WIDTH 0.3-0.5m
LEAVES deciduous broadleaf
BLOOMING TIME August - September
LOCATION full sun
SOIL TYPE neutral to alkaline
SOIL MOISTURE REQUIREMENTS dry and sharply drained (xeriscape)
USDA zone (lowest) 6   (down to -23°C)
FOR ZONE 5+6 Code of winter protection zone 5+6
FOR ZONE 7 Code of winter protection zone 7
Summer blooms
náhled fotonáhled fotonáhled foto
There are a number of hyssop species found in mostly temperate climate and only a few of them can survive winters of zones 5 or 6. However, it is so beautiful in full bloom that despite its rather short life many breeders work on achieving new hybrids that can cope with zone 6 winters provided suitable conditions. Rosie Posie (were the Teletubbies the inspiration for this name?) is an American variety of hyssop bred by Kevin A. Hurd and Hans A. Hansen from Walters Gardens Inc. Patent No. PP25857 was granted in 2015 and the plant belongs among Proven Winners® reliable varieties.

Rosie Posie is an attractive hybrid perennial hyssop of compact habit. It makes dense clumps with thin, upright stems packed with flowers. Flowers are narrowly tubular, magenta pink, and open from just a tone deeper magenta-pink calyxes. Blooming begins in late July and continues for about two months or by the last sunny and warm days of early autumn. Flowers are so loved by most winged insects such as bees, bumble bees, and butterflies. Leaves are mid green with blue hues, matte, shortly lance-shaped, and mildly serrated at margins. They do not release the mint fragrance typical for many other short growing varieties.

Rosie Posie agastache needs full sun only and looks stunning in mass plantings. And if I may suggest it is a showcase when you combine three different agastache colours in one bed. The plants demand free-draining soil because in wet ground their roots will most certainly die during winter.

If unsure about your soil type but still you want to grow agastache why don’t you make a raised bed and fill it with quality soil mixed with anything that provides sharp drainage. Such raised bed will come in handy for other plants demanding the same conditions so in the end you will create a whole new microcosmos for plants that were formerly banned from your garden. In return the plants will make your heart melt every time you gaze at them, watching them thrive and provide plenty of colour as well as bee food in late summer. Hardy to about -24 °C (USDA zone 6) and we recommend covering the clump with fir branches in winter.

Last update: 23-08-2021
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Agastache 'ROSIE POSIE'

THE PRICES INCLUDE VAT of 15%. For quick conversion you can use 1 CZK = approx. 0.04 EUR


  • STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
  • DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
  • EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
  • STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
  • HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
  • SHRUB - a woody plant with branches growing bushy from the ground level.
  • HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
  • FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
  • GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
LARGE PLANTS over 150 cmspecimens, screening and hedging shrubs

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