Hi, I'm looking for False Nettle and I only know of one source which is located in Florida and I'm not sure if those would be as hardy as False Nettle from my area: New Jersey. I would be interested in some of these from gardeners living in zones 7 or colder. Thanks, Steve

Back to your original question: Organic fertilizers should be added in fall. They need to be worked over by soil microbes before the plants can use them, and they're not terribly water soluble so they're not going to leach away significantly over the winter. Synthetic fertilizers should NOT be added in fall, as they will leach away over the winter. This wastes your time and money, and can contaminate local water supplies. I know 'everyone' says that nitrogen in fall will promote tender growth that will be damaged by winter but I don't know that it's true. Plants that are genetically programmed to go dormant in winter will do so when they receive the proper triggers - daylength, the sun's elevation in the sky, temperature and precipitation. I think that presence of nitrogen in the soil will not affect that. Now with some plants, they are not genetically programmed to go dormant in winter. They slow growth in fall due to decreased temperatures since plant physiological processes are temperature dependent. But, if they get a shot of nitrogen in fall, they might make use of it to continue to grow. Most hybrid roses for instance, have tropical genes in them to get that repeat bloom, and they don't go dormant. When it gets cold they slow down. When it gets really cold they freeze. Locally native wild roses don't do that. In warm winter areas hybrid roses grow and bloom year round. With these plants, fertilizing in fall might encourage tender new growth that is damaged in winter. But not fertilizing with organics, as they have to 'ripen' over the winter anyway. Compost, manures, and organic fertilizers are just fine this time of year! go for it.

Also False Asphodel(Tofieldia glutinosa spp. glutinosa).

Coastal False Asphodel(Tofieldia racemosa) False Asphodel(Tofieldia glutinosa spp. glutinosa)