Crown gall disease: tumors caused by Agrobacterium tumefaciens
Crown gall is the formation of rough, woody galls. Agrobacterium tumefaciens causes tumors on roots, trunks, and sometimes branches of many trees and shrubs.
Marsh calla, a beautiful arum-like flower for wet terrain
Marsh arum Calla palustris shines in the shade, producing lovely aquatic flowers. Key Marsh calla facts: Name: Calla palustris Common: water arum, marsh calla Family: araceae Type: perennial aquatic plant Height: 6 to 12 inches (15 to 30 cm) Exposure: shade or bright Soil: wet, aquatic, soggy Foliage: deciduous – Flowering: spring, summer Hailing from […]
Astilbe, a beautiful perennial: landscaping ideas
Astilbe is a perennial plant that calls mountain terrain, ravines, and forests of Asia and North America home. There are a great many different species for us to use in landscaping, resulting from patient crossbreeding giving rise to hundreds of hybrids.
