I need a cover that I can sow in July . July 1-20 is usually when the last cultivation is done to corn in my area. At this intraval there are 3-5 months left in the wet season. I need to establish a cover during this window and have it survive into the dry season. I also need to be able to harvest the cover crop as feed for livestock. I grew a species of vicia known locally as "evo de invierno" last year but, an early frost killed it and made me look like an idiot. I am going to try it again but I'd rather try something that can take the frost and the drought. I have observed a wild species of flower that is winter active and enjoyed by livestock but it seems to grow more one year and less another. I still have no seed sample for this species due to my former ignorance. This topic is of crutial importance to the Central Mexican Platue and many other areas of the world. What cover to grow and how to get the seeds to the masses. Yet the Gov'nt agricultural athority has done nothing to address the issue. I know it's not exactly permaculture that I'm talking about here but we have to start somewhere right?
I wonder if you might be able to find your cover crop among the native legumes? I'm particularly looking at Purple Prairie Clover Dalea purpurea and White Prairie Clover Dalea candida. These are both perennials, so I'm not sure they are suitable for your exact use
A Mexican farmer told me today that "oats" or "barly" will handle frost but I don't think they would handle the drought. I know wheat is more drought tolorent but I'm not sure if it will take frost in it's later stage of growth. I will be experimenting with the above crops, lupins and others. I'll be sure to let you all know how it goes.
posted 4 years ago
Here's an update. Napier grass can survive the dry frosty winter here in Puebla though it's not really a ground cover its tall.
Vicia cracca (winter vetch)locust resistant
Napier locust resistant
Native legume ground vines
All these plants can survive the harsh dry winters here in Puebla without irrigation.
The temperature goes just low enough to get frost minimum -5. Only a few nights a year. From November through February there is usually almost no rain and grasshoppers eat almost everything that is still green. The flower in the pic below is highly drought and grasshopper tolerant. It can also survive frost but the leaves can die from severe frost or prolonged cold. If the ground freezes it will probably die. Can anyone identify it and tell me the botanical name for it I know it only as ciento uno or 101. It makes a great fire barrier, chop and drop during all seasons, solid water, and flowers can be sold.
posted 1 year ago
It turns out that the following list of plants though unpalatable to grasshoppers during the summer are consumed during fall and winter when green leaves become scarce.
Jade, acanthus mollis, vicia (visa Evo de invierno), calla lilies
Wheat seems to be unpalatable to grasshoppers even in the dry season. Along with ciento uno, mature opuntia pads, mature loquat leaves, white sapote (not frost tolerant) and fig leaves.