Xtremehorticulture

Fall Vegetable Planting Use Your Phone App

 Q. Because of the continuing heat through September, when would we plant vegetables for our home gardens. What veggies would you recommend for the first planting? Ideal vegetable seed germination temperatures oriented for spring planting when soils are colder. In the fall soil is warmer and gets colder. For fall gardens work backwards with this chart. A. The Fall planting season is always uncertain. Weather phone apps help our guesstimates for about two weeks.  What is seen on vegetable planting lists are averages of the planting dates for that season. For each season you should look at the 10 or 14 day forecast from your phone app. Fall Means Cool Season Vegetables In the Fall the focus is on planting “cool season (winter) vegetables”. Its kind of a misnomer because there is no such things as “cool season” and “warm season vegetables”. That is a human invention to categorize the vegetables we eat. Plants grow best along a continuum from 45 to 90F. Some plants grow better during cooler weather and others during warmer weather. Humans divided vegetables into these two groups. This weather phone app is typical for Pahrump, Nevada. https://pvtimes.com/wp-content/uploads/2017/12/web1_1007-weather_7153434.jpg Use Your Phone App Use your phone app to pinpoint when to plant by looking at the following ten days of weather. Let’s use sweet corn as an example. Soil warmth isn’t a problem in the Fall like it can be in the Spring. Sometimes during the Spring, the soil must be warmed first to get growth from some of the warm season veggies, like tomatoes, peppers, eggplant and watermelon.  In cooler soils they just sit there, wonderful-looking, with no growth. Work Backwards We are now transitioning to the “cool season vegetables”, so a warm soil is a blessing for them. Again, not like the spring with its cooler soils. Start with the so-called “warm season vegetables” first. Because we are planting in the Fall, start at the middle of the chart I attached and work backwards for planting times. Remember some cool season vegetables have a long production cycle (like sweet corn as an example). On crops with a long production cycle, plant early in the late summer and use varieties that have a shorter production time (like those varieties that are harvested in 60 to 75 days)! Save Germination Time Due to Warmer Soil Because you are planting in the fall when soil temperatures are warmer you can normally subtract five days from the production time on the packet (e.g., instead of 70 days for production, use 65 days) if you get it in early enough and wind is not a problem. Using 70-day sweet corn as an example, guess at the harvest date (say Nov 15). Plant in 65 days less than that (approximately Sept 10). It’s still a gamble that far out but can be worth it!

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Fall Planting Fig No Problem If They Don’t Freeze

Q. Can I plant fig trees in the Fall or should I wait to buy these trees in the spring? A. Plant in the Fall. Fall is the best time to plant all fruit trees including figs. The problem is finding varieties of fruit trees that you want. But if you find the tree you want, if it is not sensitive to freezing temperatures, plant it. Figs handles temperatures down to about 10°F or -12°C.             The best time for planting freeze tolerant plants is in the Fall. Begin planting as temperatures cool from the summer heat. In Las Vegas this is towards the end of September through the middle of November.             All the fig varieties grow well in the Mojave Desert if the soil is improved at the time of planting, they get enough water and it is delivered at the right time.

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Plant Replacements in the Fall or Spring

Q. I removed two Italian Cypress trees (harder project than I imagined, especially the stumps). When is a good time to replace them, how big of a hole should I dig, and how should I prepare it?  A. I can imagine that was a very difficult job removing Italian cypress. Probably the easiest way to do it, yes I know it’s already done, is to cut it off and rent a stump grinder and grind out the stumps. The wood grinding’s mixed with soil makes a fabulous mulch.             The best time to replant is in the fall months but the problem is plant selection. There is usually not much to pick from. The best stuff is gone and the nurseries don’t want to be stuck with anything through the winter and availability of plants from wholesalers is limited to stuff that didn’t sell. But you can still find things if you’re willing to look around.             An alternative to Italian cypress is the Skyrocket Juniper. It is hard to find but stays narrow and smaller. They used to be popular 30 or 40 years ago. This is not a desert adapted tree so it will require soil improvement and I would mulch it with wood mulch at the base on top of the soil. I have never seen it planted in our hot desert climate but I don’t see a reason it won’t work with some soil preparation, decent irrigation and wood mulch.  http://www.monrovia.com/plant-catalog/plants/1715/skyrocket-juniper/ You should not have a problem planting in the same holes if the Italian cypress he removed was healthy.             Dig a hole 3 to 4 times the diameter of the container that the plant comes in. If these holes already have quite a bit of organic matter in them… You can tell by the color… Then don’t add anything. But otherwise mix the soil you take from the hole 50/50 with compost. The best compost out there locally for doing this is Viragrow compost in North Las Vegas. Viragrow compost available in North Las Vegas

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Plant Lantana While Soil Still Warm

Q. Is it better to plant lantanas now or wait until Spring? Lantana with spring growth A. Now for most of November is a great time if you can find them. Make sure to amend the soil with good compost and water thoroughly each day for several days in a row and then turn it over to your drip system. Before they start growing next spring, cut them back to about an inch and a half above the soil, fertilize them and give them a good drink.

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