Avocado trees get sunburned — what to do?

Avocado trees get sunburned — what to do?

Believe it or not, avocado bark is like our skin and gets sunburned. If left unprotected, a branch that is exposed, especially to the south or west sun, will burn.

The branch in the photo above is on a young Pinkerton avocado tree that grew out a long limb which drooped enough to expose some of its young skin to the overhead afternoon (west) sun. It got scorched during a recent heat wave.

What to do? Put on sunscreen. For avocados, Coppertone will not do. But white latex paint will. It doesn’t need to be full strength: diluting the paint 50/50 with water will make a sufficiently opaque coating.

white latex paint for avocado sunburn prevention

And then paint it on.

white latex paint on avocado branch to prevent sunburn

With the white latex sunscreen, the branch is protected and won’t get burned further. If left unprotected, the branch would get burned so badly that the bark would begin cracking and the branch’s health would decline.

So this summer if you see a section of a branch on your avocado tree that doesn’t have leaf cover to protect it, give it protection in the form of white latex paint sunscreen. It will return the favor with a long life and many fruit.

My favorite way to eat a Reed avocado

My favorite way to eat a Reed avocado

There are tiny cults surrounding a few types of avocados here in Southern California, home of the now-worldwide avocado industry.

Fuerte

Some people remain forever fans of the original commercial avocado variety, Fuerte. It has a cool (or should I say, strong) story of how it was brought up from Mexico and rose to prominence in the nascent avocado industry of Southern California. But more importantly, it’s nutty flavor is unsurpassed. I count myself among those who think it is still the best tasting avocado on the planet — among the avocado varieties that I’ve tasted, anyway.

Jan Boyce

A few connoisseurs worship a variety called Jan Boyce. It is, in a way, the opposite of the world’s most popular variety, Hass, which everyone has tasted: almost no one has tasted Jan Boyce. But those who have find it remarkable, with a small seed and unique-tasting flesh. They get poetic about how good it tastes.

Reed

Then there is the cult of Reed. Most Reed fanatics live in San Diego County, where this variety first grew. People who love avocados around here visit farmer’s markets in late summer to hunt for these softball-sized fruit. Growers love Reed because the trees are prolific, year after year. My Reed avocado tree is entering its fifth year in the ground, and it has yet to have an “off” year.

Reed avocado personal bowl of guacamole

Perhaps, however, my favorite thing about Reeds is that they can be made into personal bowls of guacamole. They remind me of sourdough bread bowls of clam chowder. I cut a Reed avocado in half, slice the flesh up a bit, and then fill the seed cavity with salsa — grab a tortilla chip and dig in. Reeds can do this better than most other varieties because the shape of the fruit is relatively round so it is easy to hold and dip into, and the peel of a Reed is shell-like so it doesn’t easily get cut up when you slice the flesh.

A Reed avocado personal bowl of guacamole is far and away my favorite summer afternoon snack, which never actually ends up being personal because my two sons always hover and beg for another chip and dip, and another and another and another.

If you don’t have your own Reed avocado tree, you can look for the fruit at farmer’s markets in Southern California from now (late June) through the fall. Also, I have seen Whole Foods Markets in the area selling them in the past. If you’re not in Southern California, you’re probably never going to find the fruit, unfortunately. They don’t ship well. But you might consider planting your own Reed tree — even if you have a small yard, as I wrote about here.

My boy and his placenta tree turn three

Kids grow fast, as do avocado trees — especially when planted over a power-packed placenta. Oddly, prior to looking through the retrospective below, I had felt rushed for both of them to hit some developmental marks even faster.

As of today, Cass can legibly write most of the letters in his name, but he continues to do this curious thing where he writes his c’s backwards.

And as for his Fuerte avocado tree, my aim has been that it produces fruit for Cass to eat and that it develops a broad branching structure for him to climb. The tree is healthy, but it has yet to produce fruit, and it’s not yet big enough for Cass to climb.

Alas, sometimes you get focused on goals, on achieving results, but miss the wonders of the process along the way.

Cass and placenta tree at birth

Just planted and just born, 2014.

Cass and placenta tree one year old

One year old, 2015.

Cass placenta tree two years old

Two years old, 2016.

Cass and placenta tree three years old

Three years old, 2017.

I’m determined to enjoy processes more. We’re not promised another day on this Earth. The process is really all we have.

How long until an avocado tree fruits?

How long until an avocado tree fruits?

It’s now a good time to start planting new avocado trees, as the danger of any serious arctic air blowing down our way has passed. I just planted the one in the photo above, on February 10, 2017. It’s a Hass from a five-gallon container. How long can I expect to wait for an avocado tree like this to bear fruit? Three to four years. That’s in the year 2020 or 2021.

I get such an expectation from the fact that the last Hass tree I planted was in July 2013, and we are currently eating its first fruit here in 2017. So, four years of waiting and we now have 73 Hass avocados on that tree.

But I planted some other avocado trees in July 2013 as well, and we ate the first fruit from two of them last year. That’s three years from planting to eating the first fruit — although we did only get from them a combined 15 avocados. This year, they have a more respectable 63. Here they are, the early birds, the Reed and Lamb:

Reed and Lamb avocado trees four years old

Four-year old Reed and Lamb trees today with their second crops of 35 and 28 avocados, respectively.

My trees seem to be average. A couple of people with much more avocado experience than me, Mary Lu Arpaia and Ben Faber, also say that new trees start to bear fruit in three or four years. (This linked page contains a great list of other frequently asked questions about avocados, by the way.)

While trees typically bear in three to four years, you may get fruit earlier or later for a few reasons. On one hand, if you buy a bigger tree — 15-gallon size — you’re likely to get fruit earlier. That’s because the bigger tree will produce more flowers (and therefore potential fruit). Also, if you have an excellent environment for pollination, with many other avocado trees around and many pollinators like honeybees visiting the flowers, you’re likely to get fruit earlier. Avocado trees of the five-gallon size will often set fruit at nurseries each spring for this reason.

On the other hand, your tree might take longer than four years to give you fruit if you prune it hard or if a winter freeze kills many branches or if it is otherwise damaged — for example, by poor irrigation. In July 2013, I also planted a Sir-Prize avocado tree, but the Sir-Prize has yet to give us fruit and I’m pretty sure it’s because I’ve pruned it hard the last couple years in order to shape it. Every spring it has flowered lightly, but only next year will it have the large canopy size to flower heavily and, hopefully, set its first crop.

Another reason an avocado tree might take more than four years to bear fruit is if it is grown from seed and not grafted. In general, seedlings take longer to bear fruit than grafted trees. A seedling in my mom’s backyard took about six years before it produced fruit.

Does waiting the typical three to four years for an avocado tree to bear fruit seem like a short or long time to you? It seemed like forever when I planted those trees back in 2013. But forever has arrived, and it tastes amazing. As it has been said, “Patience is bitter but its fruit is sweet.”

 

You might also like to read:

When to pick avocados

Can you grow an avocado tree in a small yard space?

When to pick avocados

When to pick avocados

My grandpa once asked me when to start picking fruit from his Hass avocado tree. I said February. But it’s true that I’ve been picking one every now and then from my Hass tree since November. They’ve tasted acceptable, but I know that from February they’ll taste good, so I said February. Further, from March or April they’ll taste wonderful. There is no simple or correct answer to my grandpa’s question.

If you know the variety

That said, if you know which kind of avocado tree you have, then there are reference charts you can use to give you a general sense of a variety’s harvest season.

One such chart is this one by Julie Frink, based on observations in Irvine, Orange County, California. It shows the eating seasons of 27 avocado varieties.

Below is a chart that I made based on information from many sources, including Mrs. Frink. It shows only the varieties I grow in my yard:

harvest times avocados

All of the sources I used for this chart are from Southern California, but as you see, even they slightly disagree. You can also see that no one suggests eating Hass in November, and I don’t disagree with them, even though I sometimes pick some that early.

Just keep in mind that these charts are general. When fruit from your tree will taste best to you might be on the front end or back end of the months listed. As another example, I also always try a Reed fruit from my tree in May and they always taste okay even though, according to the chart above, most people say the Reed season starts later.

Also keep in mind that it’s slightly warmer the farther south you go in California, so if you live in San Diego your avocados will mature a little earlier in the year than if you live in Santa Barbara. I have picked good-tasting fruit from a Hass tree in Carpinteria in November — not the first November, but the second November. In other words, the tree had bloomed in perhaps February and the little fruitlet began to grow, and then it hung on the tree for almost two years after that. When I picked it, the fruit was totally black. And it was totally delicious.

You might also be interested in knowing that the California Department of Food and Agriculture’s Avocado Inspection Program controls when commercial farmers can pick and sell their fruit. They issue release dates such as this one, and these dates can also be used by us backyard growers as guides for when to harvest. For example, the 2017 release date for any size of Hass (even small) was January 16 while the release date for any size of Lamb was six months later, on July 17.

If you don’t know the variety

But what if you don’t know which kind of avocado tree you’re picking from. My mom has a seedling avocado tree in her backyard, and some years back we had to figure out when to pick its fruit. Also some years ago, a friend of mine moved into a house that was shaded by an enormous old avocado tree with large round fruit that had shell-like skin but whose varietal name no one told him. Through trial and error, we figured out when to eat that tree’s fruit (and we later concluded that the tree was an old variety called Nabal).

Here’s how I’ve learned to approach situations like those:

Pick the biggest fruit on the tree and see how it ripens. Be patient. Ripening (the softening of the flesh inside) sometimes only takes a couple days but can take a couple weeks. If the skin shrivels or if the fruit never softens beyond a rubbery texture, then it’s immature. Wait about a month to pick and test another big fruit.

If the fruit has hard skin like a shell (e.g. the varieties of Reed and Nabal), you may want to pop the stem off and stick a toothpick in to judge whether the flesh is softening.

If the fruit ripens nicely but when you cut it open the flesh is dark yellow, tastes overly rich, even smelling near rancid, then you’re too late. Next year, start picking about six months earlier. In other words, if you pick one that’s too mature in July, then try picking the next crop starting in January.

Determine the variety

By the way, if you want to try to figure out which kind of avocado tree you are picking from, use the maturity season that you discover and refer to one of the charts above in order to get names of possibilities. For example, if it tastes good in the summer then that eliminates Bacon, Pinkerton, and Fuerte, but it leaves as possibilities Hass, Reed, and Lamb. Then search for those names on the U.C. Riverside Avocado Variety List to see if one fits the description of your fruit and tree. This is better than doing a general web search because unfortunately, a lot of what you’ll find on, say, Google Images is mislabeled.

No matter what, mark your impressions of the fruit you pick on a calendar so you don’t have to keep dates in your busy mind. Or, what I often do is associate a harvest season with a holiday or birthday. For example, Bacons can be picked starting on Halloween.

picking bacon avocados

The boys helping with the Bacon avocado harvest.

 

You might also like to read:

How long until an avocado tree fruits?

Do you need two avocado trees to get fruit?

Can you grow an avocado tree in a small yard space?