August 2022 - 40

VAUGHN'S VIEW
Costa trial the past few years, and
this new vegetative coreopsis for
2022-23 was highly impactful this
year, with extremely large, single
flowers positioned above the foliage
canopy, exceptional vigor, day-length
neutrality and non-stop flowering.
It was flowering prolifically in late
February and also in late April on my
second visit. This variety matures
at 12 to 15 inches and is hardy to
Zone 5. Reina Single Giant Gold is in
the GreenFuse Botanicals First Light
program and is available in unrooted
form and from multiple liners suppliers
for 2022-23.
10. PEROVSKIA
ATRIPLICIFOLIA 'JELENA'
Dümmen Orange
The breeding, trialing and
introduction of Perovskia cultivars has
advanced significantly since the first
cultivar, 'Hybrida', was introduced in
England in the 1930s. Throughout
the '70s, '80s and '90s, atriplicifolia
was the only Perovskia available, and
it was awarded the Perennial Plant
of the Year in 1995 by the Perennial
Plant Association. We now have a
wide assortment of cultivars available
from multiple perennial breeders.
Many of them differ in size and flower
shades, and they all have application
in landscape sites as accent
components with silver-green foliage,
form, flower color and durability
in xeriscape plantings. We are also
seeing many compact varieties used
in patio containers. Perovskia 'Jelena'
is the first introduction by Dümmen
Orange in this genera, and, based
on early performance in the Costa
trial, this compact variety, hardy
to Zone 5, will have outstanding
landscape application and retail
appeal. It is early flowering, matures
at 18 to 24 inches, and manifests
excellent branching and vibrant blue
inflorescences that cover the entire
plant. This genus has significant
benefits, including heat and drought
tolerance, and deer and rabbit
resistance, and is a pollinator magnet.
Perovskia is also now referred to as
Salvia yangii.
11. VERONICA LONGIFOLIA
'SKYWARD BLUE'
Darwin Perennials
This new Veronica series for 2023
consists of Blue and Pink, with more
colors in the breeding pipeline. The
cultivar name definitely describes the
dense foliage, durability and upright
growth habit with an impressive
proliferation of multiple flower spikes
rising above the foliage. Both varieties
were flowering during my late February
and April visits. The mature height is
11
10
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12 . AGASTACHE 'MEANT
TO BEE ROYAL RASPBERRY'
Walters Gardens
This trial was comprised of
many new agastache series,
collections and varieties, and the
new agastache 'Meant To Bee
Royal Raspberry', with its roseTISSUE
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FERNS
FOLIAGE
12
LANDSCAPE
14 to 18 inches, the flowering
window is late spring and
summer, and it is hardy to
Zone 4b.
purple flowers and burgundy
calyxes towering above the
foliage, was one of the most
formidable perennials in the
trial. The collection also includes
Queen Nectarine with peachcolored
flowers and striking,
persistent contrasting calyxes.
Both varieties mature at 30 to
36 inches, are hardy to Zone 5,
and will manifest an outstanding
upright habit and stature in the
landscape.
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August 2022

Table of Contents for the Digital Edition of August 2022
