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Growing Herbs In The Greenhouse In Winter

, Admin

There is always room for a greenhouse that can be used practically all year round, including the off-season greenhouse, to grow fresh herbs for the dinner table. In winter in heated greenhouses in cold regions and unheated ones in the south, you can grow dill, parsley, lettuce, celery, and onions for feathering. Greens and onions tend to be early maturing vegetable crops with a short growing season, which allows several harvests during the fall and winter season and allows you to have greens for the table all the time.

Growing herbs in the greenhouse in winter
Greens grown in the greenhouse in winter. © Lee A. Reich

Preparing to grow greens in the greenhouse

Growing greens in the fall and winter period is possible in 2 ways:

  • Use the main area. But this is not always desirable. Especially if the soil is already prepared for the main greenhouse crops;
  • Additional area created by racks to place boxes and other containers for greens. This is the easiest and cheapest option, winning for beginners.

Preparing for growing greens in greenhouses:

  • Build racks (or 1 rack);
  • Purchase crates and other containers;
  • Prepare soil mixture and fill containers, sign for what crop;
  • Describe in the garden diary the list and agronomic requirements for the crop;
  • Buy the seeds needed.

That is, perhaps, all the preparatory work. With the acquisition of practical experience, you can introduce other crops, except dill, parsley, onions on the feather. You will get a rack crop rotation, and even compacted. Try it and you will succeed.

Peculiarities of growing vegetables in winter

Cultures not demanding to care, do not require special temperature and light regime are usually chosen for winter growing. The short vegetation period allows to take several harvests during the winter season. To get good ecologically clean products in proper time it is necessary to fulfill strict agrotechnical requirements for cultivation. For example, dill tolerates shade and can therefore be placed in the greenhouse in poorly illuminated places, lettuce is so undemanding that it grows in any environment, and parsley requires light and a certain thermal regime. The specific taste perfectly complements any dish, but also helps to strengthen the immune system, contains a huge list of vitamins necessary for the body. The following varieties can be recommended for growing in the greenhouse: Bessonovsky, Karatal, Arzamassky, Strigunovsky, Rostovsky onions (early maturing). For bunting use onions that have no dormancy period and after harvesting, ready to form new crops (multi-row, slug), as well as species with a very short rest period - chives and onion-bathun.

Preparations

So, from crates and other containers on racks prepared a compilation plot, convenient because you can always culture move and place next to the desired neighbor. Under the onions we prepare a simple soil mixture of garden soil and peat or other loosening material. At the bottom we spread the film, pierce a few holes (in case of overwatering) and 2/3 fill the prepared substrate.

Distribute and mix with the top layer of soil substrate nitrogen fertilizer. As onions for feathering and harvesting is planned in a short time (modified method of bunting), the dose of mineral fertilizers should not exceed 10 g / sq.m. of the total area of the boxes. If the soil is depleted in nutrients, fertilize the prepared soil with 15-20 grams of nitroammofoska per sq.m. Soil is watered with a warm solution of Trichodermin or Planriz against fungal diseases and leave the soil to mature.

Preparation and planting of bulbs

  • Leaved for winter baking bulbs calibrate by size. It is desirable to occupy a separate box with one-size planting material. The most acceptable turnip 3-5 cm in diameter.
  • Cut the neck of the bulb with a pruner, even if it is sprouted. This method contributes to the interruption of dormancy period in this culture.
  • Prepared onions are poured into separate torbocchi or nodules of gauze or other sparse material and lowered for 10-15 minutes in water heated to +40 ... +45 ° C. You can immediately use 0.5% solution of manganese.
  • Treated bulbs without delay planted in the prepared container and placed on shelves or racks of the greenhouse.
  • Replica planted at a distance of 1-1.5 cm from each other. The distance between the rows of bulbs at least 2-3 cm. The heads deepened on 1/3 in the ground.
Growing herbs in the greenhouse in winter
Wrapping material as additional protection against frosts in the greenhouse.

Taking care of onions in greenhouse

Taking care of onions includes watering, feeding, regulation of temperature and light regime

Watering

The onions are watered 2 times during baking. After planting by an abundant rate until wet. The second - after 1.5-2.0 weeks, with a fine-mesh watering can with warm water at room temperature. The rate of watering correlates with the condition of the soil (the more drying, the higher the watering rate). One week before mass cutting, water the onions one last time. If onions are used gradually (if necessary), the soil is kept moist (not wet).

Feeding

If the soil is sufficiently fertile, it is undesirable to fertilize the crop. On depleted soils fertilize once with a solution of nitrophoska (10-15 g / 10 liters of water) or ammonium nitrate (15-20 g / 10 liters of water) in 2 weeks after planting. For fertilizing, you can use a solution of a mixture of 20 g of water-soluble superphosphate and potassium sulfate per 10 liters of water.

Solutions are thoroughly mixed and watered from a fine-mesh watering can. The fertilizer solution should always be rinsed off the leaf surface with clean water. You can sprinkle the soil with wood ash - a source of micro- and macroelements in an accessible form.

Temperature regime

For closed soil it is very important to maintain the air temperature within +10...+15 ºС.

If you fence off a separate compartment in a greenhouse and raise the daytime air temperature to +18...+20 ° C, and reduce nighttime to +12...+15 ° C, you can get green feathers in 25-30 days.

In case of strong unwanted growth of greens, the air temperature is reduced to +10...+12 ° C. In this case, the growth and yield of onion greens is reduced.

Lighting for onions in the greenhouse

The onions grow and develop normally in natural light in the greenhouse, but the leaves turn out pale green. Additional light increases leaf firmness and color intensity. In rack cultivation, only the lower racks with excessive shading can be illuminated to save light energy. For lighting in greenhouses, phytolamps are usually used.

Growing herbs in the greenhouse in winter
Salad grown in the greenhouse, under the covering material. © mehaffeyfarm

Harvesting

The onion feathers can be cut as needed when they reach 15-20 cm.

Growing dill in the greenhouse

To prolong the receipt of dill greens, its sowing on the allotted area is carried out in stages 10-12 days apart or used as a compactor for onions (by changing the scheme of planting bulbs), leaf lettuce, Chinese cabbage and other crops.

Preparing the seeds of dill

For accelerated production of greens, dill is sown with germinated seeds. For this purpose, 3-4 days before sowing the seeds wrapped in double gauze. Soak in water 40-50 ° C. This method is necessary to remove essential oils from the surface of the seeds, which will accelerate the emergence of seedlings and a more rapid growth of seedlings. During the soaking, change the water once a day, and the seeds are thoroughly washed under running water. At the end of the 3rd day, spread the seeds on a dry napkin for drying.

Sorts of dill for greenhouse

The most rational in the greenhouse for baking for the family to grow early-ripening varieties.

  • Aurora (cutting greens at 25 day from sprouts),
  • Gribovsky (cutting greens at 30 day from sprouts),
  • Dalney (cutting at 38 day from sprouts).

They form for a month fragrant succulent greens, which must be taken off immediately, because then without a break plants go to flowering.

Growing herbs in the greenhouse in winter
Rack in greenhouse for winter cultivation of greens. © thinmac

Preparing the soil for dill

Dill is undemanding to the soil, so as a compactor it normally grows and develops in the substrate of the main crop. When growing separately, dill is sown in a separate container or box. Soil is mixed with peat, humus, biohumus, sand, any other loosener to increase water and air permeability. In heavy dense soils dill roots begin to rot, the plant gets powdery mildew, treatment with preparations is not recommended.

Further soil preparation, as for onions. In the substrate add 20 g of urea and 15 g of potassium sulfate per 1 square meter of box area, can be replaced by wood ash. Thoroughly mix with soil and water. The soil under the dill must be constantly loose, for a greater access of oxygen.

Sowing dill

In the prepared wet soil in 12-15 cm deep grooves of 2 cm. Seed in rows and cover with a small layer of soil. Most often a one-line sowing scheme is used, but it is possible to sow in a strip method in 3-5 lines. In this case, in a ribbon, the distance between the furrows is 8-12 cm, and between ribbons 15-20 cm.

Wetting

For dill, a constant moisture of the soil is optimal (without excessive moisture, as the greens will be watery, can get sick). Prior to sprouting, the soil is moistened daily with a sprayer. With the appearance of shoots seedlings are watered every 5-7 days with a moderate rate of water when drying the top layer of soil.

Fertilizing

Fertilizing is carried out before the first cutting twice: nitrofoska 15-20 g / sq.m. area boxes or solutions of fertilizers used during planting of seeds. After a large cut for greens, fertilize the remaining 5-10 cm of "stumps" with an ammonia solution of 10-15 g/10 L of water. If cutting is selective (for families), then no more fertilization until the final harvesting for greens.

Temperature and light regime

Dill enough cold-resistant culture, so the air temperature in the greenhouse is maintained at 15 ... 18 ° C without drafts. It can be placed closer to the doors. Dill is so undemanding that it tolerates cultivation in shady places. When growing in boxes on racks we additionally illuminate only the lower racks with phytolamps, where there is the highest plants shading.

Harvesting

For the bushes to be foliated, dill needs sufficient area for feeding. So at a height of 10 cm we thin the crop by gently pulling plants out with the root or plucking at soil level. The pulled plants can be replanted or used as food.

Growing herbs in the greenhouse in winter
Greens in the greenhouse

Growing parsley in the greenhouse

Preparing parsley seeds

Parsley has a very long pre-planting period, which is about 45 days depending on the variety and growing conditions. In order to shorten the pre-growing period it is best to sow parsley seeds sprouted. So before sowing the seeds are kept for 5 days in a moist double-layer gauze.

Sprouted seeds are transferred for 10 days indoors at a temperature of +1°C. When sown, such seeds germinate on 15-17 days and form aboveground mass 3 times faster than at ordinary sowing.

Sowing parsley

Prepared substrate is divided into 10 cm furrows 2 cm deep. Evenly in 4-5 cm place the seeds in the furrows and cover with soil, smoothing them with your hand.

After sowing we moisten the soil through a sprayer, so as not to wash seeds from the substrate. The air temperature is maintained in the range of +12...+18 ° C not higher. At +20°C parsley leaves shrivel up from overheating.

Care of parsley in greenhouse

If seedlings are dense, thinning, leaving at least 5 cm distance between seedlings.

Water parsley when the top layer dries out, as plants do not tolerate high humidity. Fertilizing can not be carried out.

When used at home above-ground mass of height 10-12 cm can be cut to green.

For the first cutting, the remaining "stumps" parsley fertilize with a solution of nitrogen-potassium fertilizers at the rate of 7-10 g/10 liter of warm water. During the cold period in the greenhouse, you can remove a 5-fold crop of parsley, providing vitaminized greens to the family all winter.

What next?

For beginners gardeners will be good practice and help grow in the greenhouse 2-3 green crops that do not require complex care. Experienced greenhouse growers can grow a larger list of early-ripening crops with a short vegetation period in the greenhouse over the winter, using them as a main and compactor: salads (leaf, cabbage, crass salad), radishes of different varieties, rhubarb and other crops.