Hydrangea serrata‘Wilson 7820’ – 'Wilson 7820' is a true dwarf cloaked in a mounded, cascading tangle of narrow serrated medium green foliage studded with white lace caps just touched with lavender. If flowers seemingly forever and because of its decumbent habit makes an exceptional plant for a hanging basket. It’s very delicate, lovely, and very nice. This is from the original esteemed Heronswood Nursery. For gardeners towards the northern end of its range spring planting is advised.
This species originates in the mountains of Japan and Korea. Though it is purportedly hardier than H. macrophylla we seldom see flowers in USDA zone 5b; as such we are listing all of the following cultivars as better doers in zones 6 to 9. The ovate to lanceolate foliage tends to be narrower than its close cousin, H. macrophylla. The smaller leaves support an over all more delicate appearance. And as with H. macrophylla there are also both lace caps and mop heads occurring in this species and will be noted below. We've seen this group also listed as H. macrophylla var. serrata. All prefer fertile soil to sandy loam. All of the following cultivars are cutting grown.