Blackberries are a delicious fruit that we can use to make jams, juices, and drinks or to enrich our apple crumble pie.
I’ve always said there’s nothing like homegrown fruits and veggies, and once you taste the fruits of your labor, you’ll know this immediately.
Therefore, planting and growing a couple of blackberry bushes might seem like an excellent idea; and it is.
There are a couple of things you should know to prepare for a harvest, and the first one is the answer to, “When do blackberries bloom?”
We’ll tackle this and some other questions about this fruit, such as when they produce fruit, how to harvest and store them, tips for planting and growing them, and more.
But before we get to all of that, let’s look into the basic info about blackberries:
When Do Blackberries Bloom?
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There are a couple of factors we need to consider when talking about blackberry blooming times. For instance, different varieties will bloom at different times, and we always have to consider the weather too.
In warmer USDA zones (7 and above), blackberry plants usually produce flowers in mid-April and early May, but in colder regions (zones below 7), blackberries start blooming in late May.
Therefore, you can choose whether you want early or late-blooming blackberries based on your needs and the hardiness zone where you live.
One of the more popular early-blooming blackberry cultivars is Choctaw, which can grow in USDA zones 8–9, but it is rather thorny, which might be off-putting for some.
There are also thornless blackberry varieties, such as Navaho and Arapaho. But, many growers prefer Arapaho as it produces fruit approximately 11 days before Navaho (so we can safely conclude that it also starts blooming before the latter variety).
When Do Wild Blackberries Bloom?
We’ve examined some domesticated types of blackberries and their blooming times, but what about wild ones?
Does their flower production occur at the same time?
They start flowering in late spring or early summer, but the blooming time can even run into August if the weather is cooler.
However, there are two common varieties and their flowering times differ.
Cutleaf blackberry usually flowers from July to August, although it may bloom as early as May in some warmer states, while the Himalayan type blooms from June to August.
When Do Blackberry Bushes Bloom In The United States?
Blackberries (also known as brambles) usually start producing flowers in mid-to-late spring in the South.
However, blooming is delayed as you move further north, so you can expect tiny flowers to appear in late spring or even in early summer if the temperatures are colder.
However, if you live in warmer climates, flowers may appear as early as mid-to-late March.
How Long Does It Take Blackberries To Bloom?
The first canes that sprout from the soil are known as primocanes and don’t usually bear flowers in the first year.
But, if you have planted your blackberry canes in the fall, you shouldn’t be surprised if you notice a flower or two the following spring. However, you shouldn’t let these flowers turn into fruit, even though it is tempting.
Prune them so your plant can develop a stronger root system that will support the larger harvest in the second year.
Primocanes should be left to produce lateral branches and leaves and to form leaf buds before they go dormant in the fall. They will later wake up as floricanes that can bloom and bear fruit, ensuring you get a large yield.
Therefore, blackberries will flower the next year, so you will have to wait some time before you can harvest the fruit from the new canes.
Do Blackberries Bloom More Than Once?
Blackberries bloom once a year, and once the flower opens, it gets pollinated, and the fruit is set. Once the flower turns into a fruit, the same place cannot produce the flower once again.
Thankfully, blackberries have perennial roots, so you won’t have to plant new canes every other year to enjoy this delicious fruit. Although, the part of the plant above the ground is biennial, meaning it will die after the second year’s harvest.
However, there are so-called ever-bearing blackberry varieties that can produce flowers and bear fruit on the new growth of old canes. The new canes can then produce another crop in the fall.
When Do Blackberries Produce Fruit?
Blackberries produce fruit 45–60 days after flowering, but pollination has to occur before the fruit can be set.
Thankfully, these bushes and vines are self-fertile, meaning that you don’t have to have two plants to pollinate them.
Once their blossoms open, they attract various pollinators to your home garden, and your other plants will benefit from this plant too.
The blackberry season usually lasts from mid-to-late summer (so from July to September), and you can pick the berries for 2–3 weeks before the plant finally stops its fruit production.
But let’s get one thing clear before moving on to harvesting blackberries. Just like raspberries have seeds, so do blackberries, so you’ll have to manage with those tiny pits under your teeth.
However, some commercial growers have had success in producing blackberries with seeds so tiny you can barely feel them.
Harvesting Blackberries
Harvesting your crop doesn’t seem that difficult; all you’ve got to do is take the fruit and remove it from the plant. But when exactly should you pick blackberries?
Well, the fruit of this plant cannot ripen after being picked, so you should be 100% sure that they are ready for harvest.
For instance, many beginners tend to pick fruits as soon as they turn black, but that’s a classic mistake.
Such blackberries aren’t yet ripe and sweet enough, and you’ll be left with a bitter taste in your mouth.
Instead, wait about 3–4 days after the fruits have turned black for the sweetest blackberries.
You should also harvest your fruits and veggies early in the morning before the heat can make your plant wilt and droop due to the higher evaporation rate.
If picking the crop in the morning is not possible, you can do it in the evening, when the plants have had some time to recover from the midday heat.
Storing Blackberries
Usually, after picking my fruits and veggies, I feel fulfilled and happy that I have had such a plentiful yield; but then that ever-present question arises, “What do I do with so much fruit?”
Well, you can always eat your fill and then store the rest for future use.
For instance, blackberries can last for about a day in the open air, but if you wash, dry, and refrigerate them, they can stay fresh for about 2–3 days.
Of course, you can always freeze them and then thaw them once you’re ready to make that cake or pie.
Another thing I love doing when I have too much fruit is making juices or jams.
My favorite blackberry jam recipe is rather simple; just cook the blackberries, sugar, and lemon juice together for about 20 minutes, and you’ll have a homemade treat.
(Of course, you might need more time if you use more than two pounds of blackberries.)
I altered the recipe slightly and add less sugar since I really like the sour taste of blackberries on buttery toast.
