Sometimes you’ll get symptoms that look like heat stress even if it’s not that hot, and the symptoms are worse because the plant is being affected by very low humidity! Dry, hot air will commonly tip up the edges of leaves like this: Heat stress is even more damaging in the flowering stage since plant is no longer growing many new leaves. Indica-leaning strains are most prone to heat damage in the flowering stage.
Heat damage during budding will reduce your yields by demolishing many of your most important leaves, while also causing buds to grow airy with ugly foxtails. Even though the grow lights were turned off, this is what happened to an indica-leaning plant overnight after being exposed to 105°F (40°C) temperatures during a heat wave. If flowering cannabis plants are grown under too-hot conditions for a long time, sometimes they respond by growing new buds on top of the old ones. When you see extensive growth on top of the buds closest to the grow lights, that’s a sign that the grow light is too close or the temperature is too high. Some people call the new growth (which often grows in spires) “fox tails.” If it seems like your cannabis plants are completely ready for harvest, but they keep putting out new white pistils at the top of the plant, it might just be heat. If that’s the case, pay attention to the lower growth to decide when to harvest. Heat during the flowering stage also causes fox-tails, which are airy and don’t have much substance to them. It’s basically the same response as growing new buds on top, it just looks a little different on some plants. The plant is basically “abandoning” the original heat-damaged bud to try to make a sad new one.
Example of unwanted “fox-tailing” caused by too much heat. Control heat by whatever means necessary using the steps outlined below. Indoors , find a way to lower the temperature and/or increase the circulation in the grow room or grow area if heat is the problem. Having a small fan blowing over the tops of your plants will help prevent hot spots from forming directly under your grow lights. How far away should you keep your grow lights from your plants? You may consider removing grow lights further away from the tops of the plants if heat is a problem. When growing cannabis, it’s best to try to keep things at a comfortable room temperature at all times for optimal growth. If it’s too hot for you, it’s probably too hot for your plants. If you can keep your roots cool, it will help your plant deal with heat affecting the top of the plant. If there’s some way to protect the roots from heat, do it! When cannabis plants are recovering from heat shock, some growers recommend using seaweed kelp extract (often available as a convenient liquid fertilizer) to help plants recover from the stress and possible even protect plants from heat stress in the future. Many indoor setups will require that you vent out hot air using a fan and/or an exhaust system. By creating good suction with an efficient exhaust system and adding a carbon scrubber, you can also pretty much scrub all smells from the grow room. Learn more about controlling odors in the grow room. An oscillating fan will circulate air in the room as well as provide a gentle breeze for your plants, and a small one will cost less than $20. Outdoors , you have less options to reduce heat during a heat wave, but you are able to monitor your local weather via weather forecasts. It is possible to partially shield your plants when you know the temperature is going to get hot. You can also adjust your watering schedule to make sure plants at least have plenty of water. Some things to try when you know the weather outside is going to be hot or dry: water plants in the evening or early morning to help prevent water evaporation during the hottest hours keep roots cool – for example by putting your potted plant in a ceramic pot to help insulate the roots from the sun. I’ve also heard of growers digging a hole in the ground to place their potted plant inside, because the ground is usually cooler than the air when the temperature gets high kelp extract for roots – provide a small amount of liquid fertilizer that contains seaweed kelp extract (can help protect against heat stress) increase shade to reduce the heat experienced by plants – you can use an old sheet or other cloth as a short term solution, or get a profesionally made “Sun Shade Sail” which is made particularly to create shade outdoors. It’s important to remember that giving plants shade for more than a few days will make them less “hardened” to the sun, and you may need to reintroduce full sunlight back slowly to prevent them from getting shocked from the light intensity move potted plants – luckily with potted plants, it’s usually easier to move them out of direct sunlight during a heat wave take extra good care of heat-stressed plants – when cannabis plants appear heat-stressed, try to baby them as best you can, and offer shade during the hottest days.
When growing cannabis outdoors, it can often take a few weeks for plant to recover after a hot or dry spell, so prevention is the best medicine for outdoor plants. How to hide your Amazon orders so your partner won't find out what you bought them for Christmas. There are some easy steps you can take to keep your gifts a surprise. Are you one of those who has already ordered your Christmas gift for your other half? Are you sitting back feeling smug that all that's left to do is take delivery of the gift, wrap it up, and place it lovingly under the tree on December 24? But before you feel too clever, have you made sure your digital shopping footprint won't spoil the surprise on the big day? If you ordered your Christmas presents using a shared family Amazon online account, it is likely that with just one simple click your spouse and kids can access a detailed account of all of your surprise purchases and anything else you're too embarrassed to reveal. Not only that, your order history and browsing activity are also used by Amazon's bots to help anyone browsing on the site to offer more clues to your activity, with its simple, "you may also like" messages. You may not realise it, but Amazon use its very own highly-refined artificial intelligence system to continuously track your purchasing and browsing history. While this might come in handy when placing re-orders, or for tracking down receipts, if this information is leaked to the wrong eyes, Christmas surprises can be ruined.
There is a way to make sure your secrets are kept until Christmas morning.