Ground Temp: Plant in fall
PH level: Varies depending on what color you want
Spacing: 3-10′ apart depending on species
Depth: As deep as root ball
Time to Bloom: Varies
Notes: Hydrangeas need plenty of water
Botanical Name: Hydrangea
Plant Type: Shrub or Vine
Bloom Time: Mid to late Summer
Best Location: Sun or light shade
Soil: Well-drained, fertile
Diseases: Leaf diseases powdery mildew, rust, mold
Pests: Slugs, rose chafers
Propagation: Layering, cuttings
How to change the color of your Hydrangea plant
Two years ago we propagated our favorite flower, the Hydrangea. We wanted to create a variety of bloom colors for our Hydrangea loving customers, and to grab attention at the farmers market. Well, it worked. How did we do it?
So, unlike most flowers, the lacecap and mophead hydrangeas can changes colors. Fortunately for us, it is as easy as changing the soil pH. Hydrangeas are the litmus test in the flower world. Below are the pH ranges, and resulting colors:
Acid Soil (pH less than 6.0) Blue or Purple-Blue Flowers, Between Alkaline and Acidic (pH between 6 and 7) Purple of Bluish Pink Flowers, Alkaline Soil (pH greater than 7) Pink and Red Flowers
How can you change the pH? You can get a pH soil test kit to be exact, but that is not me 😉 I had pink, and wanted blue, so I wanted to lower the pH to create a more acidic environment. To do this, I added aluminum sulfate (you could also use garden sulfur). I sprinkled it around my hydrangea beauties, scratched it into the soil, and waited for a big rain. To raise pH, you can use ground lime. Use the same technique. Good luck on changing your Hydrangea color!
Hydrangea is a genus of 70+ species of beautiful flowering plants native to southern and eastern Asia and the
Americas. The greatest species diversity is in eastern Asia, notably China, Japan, and Korea. Most are shrubs 3 – 9 feet tall, but some are small trees. They can be either deciduous or evergreen, though the widely cultivated temperate species are all deciduous.
Hydrangea flowers are produced from early spring to late autumn; they grow beautiful, large flower heads, usually at the end of producing stems. Typically the flower heads contain two types of flowers: small non-showy flowers in the center or interior of the flower head, and large, showy flowers with large colorful sepals (tepals). These showy flowers are often extended in a ring, or to the exterior of the small flowers. Plants in wild populations typically have few to none of the showy flowers, while cultivated hydrangeas have been bred and selected to have more of the larger type flowers.
There are two flower types in hydrangeas, which includes the commonly grown “bigleaf hydrangea”—Hydrangea macrophylla. Mophead flowers are large round flower heads resembling pom-poms. In contrast, lacecap flowers bear round, flat flower heads with a center core of small flowers surrounded by outer rings of larger flowers having showy sepals or tepals.