Growing temperature :
50° F, keep above freeze .
Soil PH :

EC ( What is EC ? ) :
1.5-2.0 pour through method acting
fertility :
Hostas will benefit from a light lotion of liquid fertilizer ( 20-10-20 with 50 ppm nitrogen ) in early jump. Since it is critical to keep all farinaceous fertilizers army for the liberation of rwanda from implant crowns to avoid wound, fluid feed is safest. alternatively, a top-dressing of slow exhaust fertilizer may be used. Roots may rot if excessively a lot fertilizer is applied. In the fall, only a light application ( if any ) is necessity. Apply very short nitrogen in the fall to allow plants to go dormant .
Vernalization :
Required for 10-12 weeks at temperatures below 40° F .
Pests & Diseases :
Aphids are particularly adoring of the newly increase. If they feed excessively, the leaves may appear disfigured when they unfurl. Applications of Rycar, Endeavor and BotaniGard are effective at preventing aphids. Applications of Avid, Floramite, Sultan and predatory mites are effective on some varieties of hostas which are susceptible to spider mites. Mainspring, Conserve, Orius and predatory mites are effective against thrips. Slugs tend to seek out hostas. dear greenhouse sanitation before pot is the best way to prevent a punch outbreak. Mice and voles besides enjoy a tasty meal of hosta roots and crowns. Prevent rodent problems by using bait or traps .
Potting & clock :

Potting territory should be a well-drained, bark-based, soilless mix. Use a pot that corresponds with the size of the roots. Giving roots the distance they need will allow plants to reach their optimum size and quality. When transplanting, it is best to spread or fan out the roots since this tends to encourage new growth. When transplanting in give, keep hostas at 50° F for the inaugural two weeks to promote root growth. minimum temperatures may then be lowered to 40° F .
moisture :
The best settle development occurs when plants are allowed to dry out slightly between waterings. It is best to water system early on in the dawn. As with all plants, it is crucial not to over-feed or over-water. Keep soil damp early in the growing season, but do not overwater. Later in the season, allow land to dry out between waterings. Dormant hosta require identical little water system. Severe or prolonged dry conditions, on the other pass, may force hostas into quiescence and can reduce plant size the follow year .
Planting level :
Growing points or ‘eyes ‘ should be at or precisely below the dirt surface .
PGRs/Pinching :
Providing adequate space is the best method to achieve nicely shaped hostas without stretching. If adequate space is not available and/or pgr is needed, Daminozide ( B-Nine ) 2500 ppm or Uniconazole ( Sumagic ) 5 ppm sprays are effective at reducing petiole stretch. Apply when leaves begin to unfurl, 2-3 consecutive applications can be made every 7 days if needed. A erstwhile 1 ppm Uniconazole imbrue can besides be applied in place of sprays, after the beginning few leaves have expanded .
Lighting :

long days encourage new leaf growth and root emergence. Container-grown hostas are more susceptible to sunscald than those growing in the flat coat, due to higher root zone temperatures and larger swings in moisture levels. Growing containers under a 30 % -50 % shade fabric is recommended to prevent sunscald. The doorsill for light is around 4,000 foot candles to mimimize sunscald, so checking with a light meter can help to make sure your shade fabric is reducing the light to around this level .
early Comments :
Overwintering Information
Potted hosta can be overwintered in the same manner as most early pot perennials. After applying a antifungal imbrue, we suggest using the following winter procedures based on our have in Midwest climate :

  • In a cold frame structure – Turn larger pots on their side if possible.  Cover with a layer of microfoam and a layer of white copolymer.  Be sure to remove this covering in early Spring.  Bait liberally for mice.  Although cold frames are low in cost, this method is not preferred because the plants become exposed to extreme temperature changes along with excessive wind and moisture once the covering is removed in Spring.  This can cause foliage and root damage, and possibly the loss of plants.
  • Unheated overwintering structures covered with a white copolymer – This is an ideal method of overwintering potted hostas.  With this method, the pots are placed inside the unheated structure and covered with microfoam.  Although the microfoam is removed in early Spring, the white copolymer can remain on the houses for some additional time, making this method preferable over cold fram structures.  Hostas will develop naturally in this environment and yet be protected from the extreme weather conditions of Spring.  As an added bonus, the ends of the houses can be opened for ventilation.  As the warmer days of Spring arrive, the white copolymer can be removed and replaced with 50% shade cloth for contined growing.  A 70% shade cloth is recommended for blue hostas as it will help hold their blue color longer in the season.
  • Minimal heat polyhouses (around 35° F) – We do not recommend growing potted hostas in a warm house since they require a prolonged cold treatment in order to break dormancy.  Normally, hostas grown in a minimally heated polyhouse develop faster than in their natural environment.  Advanced foliage on hosta cannot be hardened off and damage can occur if exposed to cold temperatures.
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