Clematis John Warren
Massive flowers in marvelous mauve
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- flowering dateSpring
- hardiness zone4-9
- height5 - 9 feet
- restricted statesAE AK GU HI PR
- ship asPREMIUM
- sun exposureFull Sun, Partial Shade
- Colossal sized flowers
- Excellent form and color
- Medium-sized plant
A heritage favorite with a devoted following, John Warren has proven itself as a top-notch performer with eye-popping flower size. Colossal-size flowers bloom on this medium-sized plant in plentiful numbers. These flowers almost always grow to over seven inches in diameter, but we measured them at 9 inches in our test garden–even on young plants. These are some of the largest springtime flowers in the garden, with each sepal marked in gorgeous white and pink pinstripe. These larger-than-life flowers reach over seven inches in width, and you'll see masses of them on 'Clematis John Warren.' A vigorous plant, 'John Warren' blooms on a mix of new and old wood all through summer. Prune it with care and you'll find this Clematis to be an outstanding collection to your garden. Try mixing this cultivar with a smaller-blooming variety to really show off the flower size. Clematis 'John Warren'
In our EZ Pruning Guide, this variety is in the YELLOW pruning category. It blooms best on old vine. Use caution when pruning to retain healthy stems from last season for best flowering.
Product Details
- botanical nameClematis 'John Warren'
- flowering dateSpring
- flower colorPink, White
- flower formWide open colossal flowers face upward
- formVine; Medium Plant, Colossal Flower
- hardiness zone4-9
- height5 - 9 feet
- planting instructionsYELLOW group vining clematis (potted, dormant or bareroot) should be planted 2-4" deeper than the current crown. This means you will plant roots, crown and come of the stem under the soil
- pruningIn our EZ Pruning Guide, this variety is in the YELLOW pruning category. It blooms best on old vine. Use caution when pruning to retain healthy stems from last season for best flowering.
- restricted statesAE AK GU HI PR
- shipping seasonSpring
- ship asPREMIUM
- soil requirementWell-drained, fertile soil
- spacing36 - 48 inches
- spread36 - 48 inches
- sun exposureFull Sun, Partial Shade
- watering requirementWater deeply and regularly
Shipping Schedule
When will my order ship?
Plants will be shipped at the proper planting time for your area of the country during the shipping timeframes outlined below:
| 2025 Spring Shipping Schedule | |
|---|---|
| Zone | Most Dormant Bareroot & Potted Perennials, Trees and Shrubs |
| 3A-3B | 4/28/25 - 5/30/25 |
| 4A-4B | 4/28/25 - 5/30/25 |
| 5A | 4/28/25 - 5/30/25 |
| 5B | 4/7/25 - 5/30/25 |
| 6A | 3/24/25 - 5/30/25 |
| 6B | 3/10/25 - 5/30/25 |
| 7A | 2/24/25 - 5/30/25 |
| 7B | 2/17/25 - 5/9/25 |
| 8A | 2/17/25 - 5/9/25 |
| 8B | 2/10/25 - 5/9/25 |
| 9A | 2/3/25 - 5/9/25 |
| 9B-10B | 2/3/25 - 5/9/25 |
| Last Order Date | Zones 3A - 7B: 5/26/25 Zones 8A - 10B: 5/5/25 |
