You should take a break from feeding your plants during a heat wave or drought. However, to prepare them for conditions that could cause heat stress, regularly give them Miracle-Gro® Water Soluble All Purpose Plant Food (following all label directions) so they're nice and strong before the unfortunate weather arrives.
Don't fertilize plants or trees during hot summer months
During hot spells, it is especially hard to keep up with plant water and nutrient needs as soils dry out quickly and water may not be readily available. Save your plants (and yourself!) from stress by stopping fertilizer application before hot weather hits.
Don't fertilize during a heat wave.
If you fertilize your plants while they're stressed, it may even damage them. Withhold the fertilizers (or apply a weaker diluted solution) until the weather cools off a bit and your plants have a chance to recover.
MG is so strong that if used incorrectly, the fertilizer will actually burn the leaves and roots of your plants (you may have already experienced this). Imagine what it's doing to the healthy bacteria, fungi and other soil microbes that are working so hard to provide the nutrients your plants need.
Use shade cloth or protective row covers.
A shade cloth is temporary but care should be taken to position it to block sunlight while not reducing aeration. Plants do not need to be enclosed in shade cloth; usually positioning it on only one side or above the plant will suffice.
If you are using the right amount of miracle gro, there should be more flowers than usual. If your plants' foliage is growing more than usual that the plants stop looking beautiful, it's the time to stop using more miracle gro.
On January 27, 2012, Scotts Miracle-Gro pled guilty in federal court and paid $4.5 million in fines for selling 73 million units of bird seed between November 2005 to March 2008 that was coated with pesticide known to be deadly to birds and fish.
The main issue with this fertilizer is that it contains a lot of nitrogen. This component comes from synthetic materials, which produce chemicals potentially harmful to the soil and the plants that aren't listed as active ingredients.
Don't fertilize when it's winter or early spring
The ideal temperature to fertilize your lawn is 50-70 degrees Fahrenheit. Any lower than this, your lawn will struggle to maintain nutrients.
It is wise to be wary of fertilizing your lawn during hot weather. The best time is when temperatures remain below 85 degrees Fahrenheit with overcast conditions, using a slow-release formula. Extra fertilizer in the heat can burn the lawn and the extra flush of growth may have difficulties in the summer heat.
During extremely hot weather (daytime temperatures above 90F and nighttime temperatures above 70F), try to water daily or every other day. In a 10x10-foot garden, this would mean giving your plants 8 to 9 gallons of water each day.
The best time to fertilize your lawn is when the grass is actively growing, and for cool-season grasses, that's when temperatures are 60 to 70 degrees F. For warm-season grasses, active growth will usually happen when temperatures are between 75 and 85 degrees F.
Answer: Miracle-Gro Water Soluble All Purpose Plant Food can be applied every 7 to 14 days, anytime during the growing season, or when plants are actively growing. This is typically done when soil temperatures are at least 50-55 degrees and the ground is not frozen.
Whether or not your lawn is dormant, applying fertilizer right now, with the high temperatures we've been having, is not a good idea. Applying either fertilizer or weed killer when it's hot out can damage your lawn. You're better off waiting until later in summer to fertilize.
While fertilizer used in the right quantities can indeed promote houseplant growth, when overdoing it, you hinder the very growth you want. In fact, you're slowly killing your plant, and so its foliage, stems, or roots may be undersized. They'll also look brittle, crinkled, wilted, or limp.
You don't need to use this specific fertilizer after watering your plants. In fact, you should wait 14 days after applying the fertilizer for the next application. Too much Miracle-Grow can burn the plant's roots, leading to irreversible damage.
Miracle-Gro® Water Soluble All Purpose Plant Food instantly feeds vegetables, trees, shrubs, and houseplants to grow bigger and more beautiful than unfed plants. Simply feed them every 1-2 weeks. The formula is safe for all plants, and is guaranteed not to burn when used as directed.
Answer: Per the manufacturer, Miracle-Gro Water Soluble All Purpose Plant Food can be applied at anytime. If plants are experiencing drought or really dry soil, then it is suggested to water the plant before applying the product. Light to moderate rain is perfectly fine before or after an application.
A: I assume your question is about the commonly held notion that full sun on droplets of water will burn the plant. The answer is no, to that question and to yours. (See The Myth of Hot-Weather Watering.) Even so, the best plan is to have plants well hydrated before the heat hits.
Over watering, under watering, excessive heat, or root damage may all cause leaves to drop. Girdling roots, which often result from improper planting depth, also can cause premature leaf drop. Once leaf scorch has occurred, there is no cure.