(Hydrangea macrophylla) Hardy in zones 5 - 9. A popular rebloomer with a tight, compact habit. It's large, full flower heads turn deep blue in acidic soils, but are pink in alkaline ones. This performer blooms reliably on both old and new wood even in challenging conditions like zone 5. Let's Dance ® Rhythmic Blue ® Reblooming Hydrangea 4. Pick the Flower Hue You Want. For true blue flowers, the hydrangeas need to be grown in acidic soil with a pH of 5.5 or lower. For pink flowers, the plants need neutral to alkaline soils (pH 6.5 and higher). For purple blooms (or a mix of blue and pink flowers on the same plant), the pH of the soil must be between pH 5.5 and 6.5.
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Flowering season: mid spring to early fall. Size: 4 to 5 feet tall (1.2 to 1.5 meters) and 2 to 3 feet in spread (60 to 90 cm). Soil and water requirements: fertile and organically rich, well drained and medium humid loam, clay or sand based soil with pH from mildly acidic (for blue flowers) to mildly alkaline. The flowers on 'Mathilda' are a very rich blue (almost purple) and occasionally have a lighter blue center giving them a tie-dyed appearance. Bloom time is from early summer through the fall. This hydrangea is a nice size for a hedge or foundation planting, growing from three to six feet. Plant in partial sun. Endless Summer Twist-n-Shout is a relatively new variety with blue flowers. It has a dwarf size, with a height and width usually not exceeding 3 feet. It needs almost no pruning and grows well in containers. As for hardiness, this hydrangea can tolerate zone 4 and 5 frosts. In the south, it can be planted up to zone 9. Add Hydrangea 'Zorro' to your garden and enjoy the contrast between its dark stems and its blue flowers, making a bold statement all season long. 5- Hydrangea macrophylla 'Nachtigall' It is a truly mesmerizing plant, blooming between July and October, and bearing flat inflorescences that are sure to leave a lasting impression.
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Nikko Blue Hydrangea Care. Nikko blue hydrangeas grow to be around 6 feet tall, with a similar spread. The more shade the bush receives, the shorter it may remain—in extreme cases, the plant may stay short enough to resemble a large perennial in size. The shrubs are multi-stemmed and grow in an upright habit. 4. Nantucket Blue hydrangea. Nantucket Blue hydrangea is a selection from 'Nikko Blue'. It is very similar to 'Endless Summer' and is another rebloomer that can flower on both old wood and new wood. Hydrangea macrophylla 'Nantucket Blue' tends to grow to a mature size of 4-6 feet tall and wide in a mounding shape. To encourage blue hydrangea flowers, grow the plant in soil that has a pH of 5.2-5.5. If your soil is more alkaline, you can lower the pH by applying Soil Acidifier at the rate specified on the package. Soil pH can also be lowered (more gradually) by applying an acidic organic mulch, such as pine needles or pine bark. At this level, blue hydrangea flowers stayed blue; pink turned blue, and red flowers turned purple. When I changed the soil pH to between 6.5 and 7, those same hydrangeas started to turn pink or red, and at 7 or above, they were a deeper red and more vibrant pink.
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'Nikko blue' hydrangeas have become the standard that all other blue hydrangeas are judged against. This pretty hydrangea is a member of the bigleaf hydrangea species or Hydrangea macrophylla.. The blue flowers on this shrub will grow up to 5 inches and will be made up of various shades of blue and white depending on how old the flower is. Maintaining such a narrow pH range is easier to do with container culture than in the ground. Name: Cityline Mars hydrangea ( Hydrangea macrophylla Cityline 'Mars') USDA Hardiness Zones: 5-9. Flower Color: Blue, pink. Light: Full sun, partial shade. Mature Size: 1-3 ft. tall and wide. Continue to 5 of 14 below.
Use Blue Hydrangeas as Natural Décor in Your Home. Once your hydrangea garden has produced these large, luscious blooms, they can be cut and brought inside to be used as centerpieces. Potted hydrangea plants also make gorgeous room accents - you can usually find these beautiful flowers at your local garden center. Hydrangea macrophylla 'Blue Heaven' is a bushy deciduous shrub boasting large, bright blue flower heads. Flowering from early summer until frost, this bigleaf hydrangea is a prolific reblooming hydrangea, as it blooms on both old and new growth. Even if old growth buds are winter damaged, the plant still flowers in summer on new growth. The foliage is dark green with large, glossy, serrated.
Closeup Photo of Blue Hydrangeas in Bloom · Free Stock Photo
Beginner's guide to beautiful blue hydrangeas. I will show you how to turn your hydrangea flowers blue. Hydrangeas are easy-to-grow perennials that will bloo. Look for bigleaf hydrangea varieties such as Cityline, Endless Summer, and Lacecap. To lower the pH and make the soil acidic, mix together 1 pound of aluminum sulfate and 5 gallons of water. Then.
