My question is: Can you still get an avocado pit to grow if it has been stored, and if so for how long and how to you store it? I just think it would be easier to save my avocado pits as I eat my avocados over the next month, but if that won't work that means I'd have to consider buying as many avocados as the number of children that will be present and cut them all open on that same day.
After some experimentation, we found that the sphagnum bag method was easier and more reliable than the more common practice of puncturing the avocado seed and suspending it in a glass of water. (See The Secret of the Sphagnum Bag, page 8.) Germination time varies with each pit, but the average time is a few weeks.
When the roots are 3 to 4 inches long, transfer the avocado to a pot 1 inch larger than the pit. Fill the pot one-third full with potting soil. Gently place the pit on the soil and fill in enough soil around it so that half the pit is exposed at the top. Place the pot in a warm, bright spot (avocados do not require direct sunlight). Once established, avocados grow quite rampantly. Keep the soil moist, but not soggy, at all times. During their natural resting period from October to January, avocados need less water. As soon as the days lengthen, new leaves will appear and you should give them more water.
Sphagnum Bag details:
Fill a quart-sized, sealable plastic bag with barely moist, long-grained sphagnum moss. The moss should have the consistency of a good unbaked pie crust and should not drip when squeezed. (Long-grained moss is available at most garden centers; if you can’t find any, use regular peat moss.) Place the seed in the bag, making sure it is completely surrounded with the moss. Seal the bag and place it in a warm, dark spot. Check the bag several times a week to make sure there are no soft spots on the tuber or root, or mold on the seed. If it is too dry, add water; if it is too wet, leave the bag open for a day. Seeds or tubers raised in the sphagnum bag will have to be hardened off.
To harden off she says to punch holes in the bag a week before transplanting. She also said she had better germination rates with "Florida" avocados than "Californian (Haas)" avocados. Good luck!
Natty Zickuhr wrote:Any reliable info on sprouting avocados would be helpful. I have tried many times and followed the instructions of several websites (basic gist - toothpick pit, lower half submerged, put in warm sunny place)...never any results. All I grow is algae. I've tried peeling the pits, different water depths, adding liquid fertilizer, and burying them in a potting medium. No roots. What am I doing wrong? Is there a minimum germination temp?
Natty - I've tried to grow avocados the 'toothpick way', too and failed miserably, but then I started using a 20 oz. plastic water bottle, cut about in half and top inverted into the bottom. Place about 10" of clothesline or similar to act as a wick from the top and wind into the base, fill base with an inch or two of water, add a square of paper towel to hold back your soil in the top part. Snap the two pieces together. Place you avocado pit wide/flat end down, pointed end up into the soil in the top part. Place in a bright area and check your water level at least weekly and do not let dry out. Sometimes it will take weeks for your pit to sprout, but so far, using this method, I've had 100% success. I snip/pinch of the top of the new sprout at about 1-3" up, to help inhibit a spindly plant and further develop the root system. At about 18'' tall and leafed out nicely, I can plant in a regular pot or ground and let it take off. I think, some people don't realize how long an avocado seed can take to sprout and give up prematurely, another long too sprout plant is turmeric, at $8/lb. everyone should be growing it and taking it for their health.
Are you aware how long it takes to get an avocado tree to produce? Or how finicky they are as to where they will flourish? I had considered land in Fallbrook CA (Avocado capital) and quickly realized, I would want to buy an established orchard not plant one. My spouse wondered if I would try to green house some here in central VA; I said no, due to how long it would take to even hope for a crop.
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