Sunday, February 7, 2016

2016 Intersectional Peonies Suffered Frozen Bud Blast

Nope. Not even all of the intersectional peonies were able to withstand that late cold winter blast last spring. You would think with their tough guy image and strong tree peony like woody stems, they would just shrug off a cold blast. Unfortunately some varieties had blasted buds and some had both blasted buds and a reduction in blooms from the previous year. Not all of my intersectional peonies are rated here. Some of them were too small and/or immature to evaluate or there was not enough data to make a proper evaluation. Check out the table below to see who suffered in the cold...

Intersectional Peonies with Buds Blasted by Late Freeze
Peony Variety
2015 Bloom
2014 Bloom
Blast Rate
Bloom Reduction
Peony 'Little Darlin'
0 of 3
4 of 4
100%
100%
Peony 'Scarlet Heaven'
0 of 2
2 of 2
100%
100%
Peony 'Morning Lilac'
1 of 3
8 of 8
67%
88%
Peony 'Pastel Splendor'
3 of 3
10 of 10
0%
70%
Peony 'Sonoma Amethyst'
7 of 7
16 of 21
0%
56%
Peony 'Julia Rose'
8 of 8
10 of 10
0%
20%
Peony 'Garden Treasure'
13 of 16
15 of 15
19%
13%


2015 Intersectional Peony Garden

There were however several varieties which did shrug off that winter cold, seemingly unaffected by the late frost, that did not suffer any reduction in bloom or bud blast. These intersectional peonies all increased (or maintained) their bloom counts. Only one of these varieties suffered some bud blast. I am amazed to see three of Don Smith's Japanese named Intersectional Peonies sold by Monrovia as the top three in this list! I'm guessing the other Japanese named peony in that collection is not on this list only because it was too immature in my garden to evaluate. I am also not surprised to see Peony 'Cora Louise' on this list which was nominated for the APS Gold Medal last year, and it almost won, Peony 'Bartzella' which already won the APS Gold Medal in 2006, and Peony 'Keiko' a 2015 Southern Peony Best Performer.

Intersectional Peonies Unaffected by Late Freeze
Peony Variety
2015 Bloom
2014 Bloom
Blast Rate
Bloom Increase
Peony 'Yumi' 由美 (Possess Beauty)
3 of 3
0 of 0
0%
300%
Peony 'Keiko' 愛幕 (Adored)
35 of 35
9 of 9
0%
288%
Peony 'Takara' 慈悲 (Treasure)
19 of 19
6 of 6
0%
216%
Peony 'Cora Louise'
11 of 11
5 of 5
0%
120%
Peony 'Copper Kettle'
2 of 4
1 of 1
50%
100%
Peony 'Yellow Crown'
11 of 11
6 of 6
0%
83%
Peony 'Bartzella'
7 of 7
4 of 5
0%
75%
Peony 'White Emperor'
9 of 9
9 of 9
0%
0%


Intersectional Peony 'Keiko' 愛幕 (Adored)

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