July 2022 - 38
CULTURE REPORT
Endless Summer 'Pop Star'
Hydrangea
W
hen it comes to adding new varieties to the Endless Summer
lineup, the bar has been set very high. At the very basic level, an
Endless Summer hydrangea must be cold hardy to Zone 4, have
very high production values to service a wide range of environments globally
and, most importantly, exhibit strong reblooming power.
A TRUE BREEDING BREAKTHROUGH
One area within Hydrangea macrophylla that has kept our breeders hard
at work is the compact lacecap category. In an effort to bring something
truly unique and groundbreaking to the market, Bailey's breeding team
had these objectives in mind: stiffer stems, shorter internodes, improved
foliage, better bloom load and improved rebloom.
After years of evaluating potential plants, Head Breeder David Roberts
and his team at Bailey Innovations, the breeding arm of Bailey Nurseries,
finally landed on a compact lacecap Hydrangea macrophylla that met their
desired criteria. Endless Summer 'Pop Star' is the newest addition to the
series available at retail in Spring 2023, and it boasts a compact size with
extremely heavy flowering.
'Pop Star' is " arguably the best rebloomer we have in the brand, " says
Roberts. " In our production trials, 'Pop Star' leads the pack when it comes
to the quickness to rebloom and the quantity of blooms it produces. "
Aside from its impressive rebloom, 'Pop Star' is incredibly cold hardy.
38 JULY 2022 GPNMAG.COM
This new compact lacecap variety exhibits impressive reblooming power.
BY JASMINA DOLCE
Bailey trials all its plants in Minnesota, and data has shown that 'Pop Star'
will take temperatures as low as -35° F. Even if it dies back due to cold
or fluctuating temperatures, 'Pop Star' will regrow from the crown that
following spring and that vegetative growth will still produce flowers.
Liner options will be available to growers in spring of 2023, and Bailey
Nurseries is confident this new introduction will pop at retail once it enters
garden centers.
The four key characteristics that make Endless Summer 'Pop Star' truly
special are:
* Prolific rebloomer. In rebloom trials, new buds have appeared as early
as four weeks - dependent on climate - after a hard cutback to
remove terminal buds.
* Genetically compact. 'Pop Star' maintains its small stature with short
internodes.
* Easy to grow. It requires little to no PGRs, meaning fewer touch points
lead to a more profitable, retail-ready plant.
* Versatile. Adaptable to any setting, 'Pop Star' is stunning in the
landscape as an individual or mass planting, and it will also shine in
decorative containers.
For growers already producing Endless Summer hydrangeas, 'Pop Star'
will be a no-brainer and you will find easy success. Following the culture
guidelines outlined below will help growers produce a top-quality crop.
http://www.GPNMAG.COM
July 2022
Table of Contents for the Digital Edition of July 2022
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