Since we are not in the native range of Alnus viridis here at the Lady Bird Johnson Wildflower Center, we don't have hands-on experience propagating it. We can, however, refer you to some good resources. There is an excellent description of the of propagation of green alder from seed on the SaskPower Shand Greenhouse web page. Also, Dr. Michael Dirr, in his book "Manual of Woody Landscape Plants: Their Identification, Ornamental Characteristics, Culture, Propagaion and Uses" (1998, Ball Publishing) calls for 90 days cold stratification for Alnus crispa seeds. To accomplish this you can put the seeds into a plastic bag with vermiculite or sand that is slightly moistened and store in the refrigerator.
Propagation of hostas September 06, 2005 - I have many different types of hostas in my yard. This year they bloomed abundantly and now have large pods where the blooms were which are full of seeds. My questions: 1. If I plant these pods, o... view the full question and answer
Planting wildflower seeds in a drought in Grimes Co. TX November 03, 2010 - I have a dilemma, shared by others I'm sure. My place, which is in Oakland prairie, has seen no real rainfall since sometime in August, and the soil (sand, loam, and blackland clays)is extremely dry.... view the full question and answer
Transplanting roughleaf dogwood in Pflugerville, TX March 28, 2007 - Hello.
My rougleaf dogwood is suckering enthusiastically, and rather than mow off all the root suckers, I'd like to transplant a couple of them to the stream bank in the greenbelt behind my house. ... view the full question and answer
Weak flowering on rosa minutifolia from San Diego CA July 27, 2013 - Hi, I have a Rosa minutifolia and has been doing great, but when it gives flowers the petals fall too fast, only last a day or two and also the fruit never forms completely and finishes drying so I ca... view the full question and answer
Pollination of blackberries in Lake Winnebago, MO May 27, 2010 - Not sure if blackberries are native, but my daughter got a start of one at a plant exchange at the nature center. Do we need more than one for it to pollinate correctly? We have strawberries growing i... view the full question and answer