Iris (sk. germanica) 'IMMORTALITY' bearded iris
size/type
mid-sized perennial,mid-sized perennial
usual height
0,7-0,8m
leaves
deciduous broadleaf
colour of leaves
flowers
showy
colour of flowers
blooming time
May-June
location
full sun
USDA zone (lowest)
3 (down to -40°C)
winter protection
for zone 5+6
for zone 7
categorized
Description of the plant:
If you want to stay immortal in the world of botany publish a book, best choice is an encyclopaedia, or name a variety of yours by that name: Immortality. This bearded iris produces large, fragrant, pure white flowers atop 70-80 cm tall stems. First from mid May until early June, and then again in late summer (August). Sword-like leaves are deciduous, pale green. Bred by Lloyd Zubrigg in 1982.Hybrid varieties of bearded iris thrive in full sun and should be planted in well-drained but moist soil of any pH. Various sources say different things about pH requirements, however, truth is that if the soil is reasonably fertile acidity does not play a significant role. Do not mistake them for water irises which do like wet and boggy conditions, these hybrids might rot it such environment.
The plants spread with their rhizomes but are not invasive. Unwanted new rhizomes can easily be dug out and transplanted somewhere else. The rhizomes like warmth so if your garden beds are mulched reduce its amount above iris’ roots to minium. Occasional fertilizing is welcome to enhance flowering and plant health. Thanks to showy flowers and variability of colours available they will be both a perfect companion plants for others as well as great features in any landscape design. Fully hardy to min. -40°C (USDA zone 3).
Last update 24-06-2020
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GLOSSARY
- 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.
