Solidago patula aka Rough Leaf Goldenrod

Solidago patula belongs to the daisy family, Asteraceae. Its common name is rough-leaved goldenrod. This perennial grows for more than one year. It is native to the north-central and eastern United States. Kew places it in the temperate climate zone. The Royal Horticultural Society says it is not native to Britain or Ireland. These records describe an American species. They do not describe a plant native to British gardens. Its flowers return with the seasons in a lasting garden planting.

Chicago Botanic Garden says the plant grows upright. This gives a rough guide to its form. It does not tell us its height or width. The supplied species records give no full-grown size in feet or metres. They give no details of the stems or leaf shape. They do not say how the leaves feel. The page lists the common name rough-leaved goldenrod. Yet it does not describe the leaves themselves. The RHS also gives a broader account of the genus. That account cannot show this species' exact form.

The yellow flowers draw butterflies. Chicago Botanic Garden lists blooms in July, August, September, and October. The bloom season thus spans summer and autumn. This supports its use for late-season flowers and butterfly visits. The record does not name the kinds of butterflies that visit. It gives no flower size or details of their layout. The supplied pages do not describe fruits or seeds. They note that butterflies visit the plant. But they do not state how pollination takes place.

Chicago Botanic Garden lists full sun and partial shade for growing it. It calls for moist soil. Soil moisture thus matters when you choose a site. The evidence gives no preferred soil texture or pH. It does not show that the plant can cope with drought. Nor does it show that it can cope with standing water. The garden's hardiness entry reads “3–0.” This is not a usable zone range. These records give no sound basis for a hardiness range.

The supplied species accounts give no details on pests or diseases. They give no evidence of parts you can eat. Nor do they give evidence of medicinal uses or toxicity. These gaps do not prove that the plant is safe. They do not prove that it resists pests or diseases.