But when is the best time to start planting your seed trays in a garden greenhouse? Firstly, what is a seedling (in case you didn’t know)?Ī seedling is a baby plant that has just germinated and is starting to develop. Being able to administer a controlled climate as well as receiving sunny conditions gives you the flexibility to start seed starting your plants prematurely, which in turn gives you a head start on the sprouting and growing season. * In the garden, direct seed beets, carrots, leaf lettuce and turnips.Garden greenhouses contribute to an ideal environment for sowing seedlings. * Sow seeds of perennials in pots for fall planting including yarrow, coneflower and salvia. * Indoors, start seedlings for fall vegetable planting, including bunching onion, cabbage, broccoli, cauliflower, kale, radicchio and lettuce. Dispose of plants heavily infested with spider mites. * Pull out summer vegetables that are past their prime and have stopped producing. Then feed fruit trees with slow-release fertilizer for better production for next year. Clean up debris and dropped fruit this cuts down on insects and prevents the spread of brown rot. Chrysanthemums can be fed until the buds start to open. * Fertilize fall-blooming perennials, too. * To prolong bloom into fall, feed begonias, fuchsias, annuals and container plants. That goes for azaleas and gardenias, too. * Camellia leaves looking a little yellow? Feed them some chelated iron. This will give a boost to the fruit that's now forming. *Feed citrus trees their last round of fertilizer for the year. * Divide bearded iris and other perennials. Roses will rebloom about six to eight weeks after deadheading. Make sure to water plants before feeding. Cut off spent blooms from roses, annuals and perennials, then give them a boost of fertilizer. * Prepare for a fall full of flowers by paying a little extra attention to your garden. Before temperatures heat up again, take care of some late summer tasks: We get a brief cooldown this week, thanks to the Delta breeze. Don’t let it mound around trunks or main stems give them a little room to breathe to avoid crown rot. * Mulch goes a long way in maintaining soil moisture and coolness. In container plants, the root ball contracts, so when you do give them a drink, the water just flows down the sides of the pot’s interior instead of actually rehydrating the roots. Don’t let soil dry out completely that can lead to blossom end rot in tomatoes and other issues. Move container plantings out of afternoon sun. They may need daily watering or irrigation every other day. * Keep newly planted seeds, sprouts and transplants evenly hydrated. Let the hose run a little before applying water directly. Plants don’t appreciate 130-degree water. (This is important especially late in the day.) When you first turn on the water, the water coming out of the hose can be very hot (since it’s been sitting inside plastic or rubber under high heat). * Check the temperature of the water coming out of the hose. That’s when there’s less evaporation and more moisture stays in the ground. * Water early in the morning or in the evening. Squash plants also react to high heat by wilting, but recover later. Wilting in the morning is not that’s when you know they need a drink right now. Wilting in the afternoon is normal for tomatoes. Is the soil moist? If it easily crumbles, then it’s time to irrigate. (This trick doesn’t work if your testing potting mix it tends to stay loose, even when dry.) Or check with a trowel. Stab a long screwdriver into the ground if it penetrates 6 inches easily, the soil has enough moisture. * How to check? A moisture meter is very handy, but you can improvise. Clay soil retains moisture and coolness (especially if mulched). Just because you feel hot doesn’t mean your garden needs watering. Here are some tips for watering during triple-digit heat: Others can become dehydrated and stressed rapidly. Many summer favorites such as tomatoes and squash can thrive in high temperatures. It’s 104 degrees does your plant need a drink? How to tell when your plants need a drink If it's still like this in the morning, however, the plant will get some water. But this tomato plant doesn't need a drink - wilting is its heat-coping mechanism. The thermometer nearby was right at 99 degrees when this photo was taken in early afternoon.
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