Ceanothus thrysiflorus (Blueblossom)


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Blueblossom or Blue blossom Ceanothus is one of the most popular species of Ceanothus in landscaping applications. It varies dramatically in form and size over its natural range, with some plants growing fairly upright to 30 feet and others growing in a mounding form to only 2-3 feet tall. Blueblossom Ceanothus is evergreen, with leaves range from bright green to dark green. It has small flowers that are produced in a dense, puff-shaped clusters, that are white, light blue, dark blue or purple. They bloom in the winter or spring, and then mature into a dry, three-lobed seed capsule. Its flowers are important for bees and butterflies, and its seed pods are an important food source for birds and small mammals. Blueblossom grows in full sun or part shade. In the hotter, inland part of its range, it does better with more shade, on northern slopes, and if closer to an irrigated or a naturally moister area. In the cooler coastal part of its range, it prefers more sun and can tolerate drier locations. In general, if you water mature Ceanothus in the summer, they will usually be short-lived. Best to choose a Ceanothus native to your location, and stop direct watering after 1-2 years

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