Dahlia 'Red Hat' in the Dahlias Database

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Minimum cold hardiness: Zone 8a -12.2 °C (10 °F) to -9.4 °C (15 °F)
Flowers: Showy
Resistances: Deer Resistant
Propagation: Seeds: Can handle transplanting
Propagation: Other methods: Cuttings: Leaf
Other: Propagate by taking cuttings of newly emerged shoots
Containers: Suitable in 3 gallon or larger

Photo Courtesy of Lynch Creek Farms.

Dahlias in all shapes and sizesDahlias in all shapes and sizes
September 30, 2015

Most gardeners are familiar with the more common types of dahlias, the Formal & Informal Decorative, the Ball, the Single, and the Cactus, but there are other forms that get less notice.

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Photo gallery:
Photo Courtesy of Lynch Creek Farms.
By Joy
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By mandolls
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Date: 2011-09-23Courtesy Alpha Dahlias
By vic
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Photo Courtesy of Lynch Creek Farms.
By Joy
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Photo Courtesy of Lynch Creek Farms.
By Joy
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Discussion Threads about this plant
Thread Title Last Reply Replies
Black stem rot by leepenfold Aug 5, 2019 6:42 PM 3
A number of questions from a new addition to Dahlia growing. by BrickyBrian Aug 3, 2019 6:45 AM 3
Agar-agar to help my hydrophobic soil by ginnyginny Jun 7, 2019 11:13 AM 0
Seeking great-grandfather's "Zufall" Dahlias by tappendorfflowerco Jun 7, 2019 10:24 PM 2
How Far apart do you plant your tubers and rows? by TreeClimber Aug 11, 2019 3:48 AM 19
Starting Tubers : Pots vs Flats? by TreeClimber Jun 14, 2019 6:44 AM 9
Dahlia seedlings by SummerStorm93 Aug 16, 2019 5:54 AM 1
My first order arrived .... now what? by TreeClimber Apr 15, 2019 10:15 AM 7
What's ailing my dahlias? by Bbortel93 Apr 19, 2019 5:12 AM 3
2019 Dahlias by pirl Aug 18, 2019 9:06 PM 432
Can anyone put a name to this Dahlia? by TreeClimber Dec 31, 2018 11:53 AM 7
Digging & Storing Dahlias, 2018 by frankrichards16 Dec 5, 2018 8:26 PM 2
Buying tubers by MeCasa Dec 21, 2018 9:14 PM 3
Dahlias in the Southeastern US? by scvirginia Oct 14, 2018 10:22 AM 4
To Pinch or Not to Pinch by ErinGerg Jun 27, 2018 9:44 AM 4
30% off at Swan Island started today! by frankrichards16 May 28, 2018 8:55 PM 2
Last man standing, 2018 by frankrichards16 Apr 19, 2018 12:21 PM 1
Staking Dahlias by MargieNY Mar 5, 2018 10:40 AM 56
Need help with gifted dahlia by MargieNY Feb 10, 2018 5:11 PM 20
Good supplier for latest introductions? by frankrichards16 Dec 28, 2017 6:55 PM 4

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