house hot spots

Keep Your Growing Room Warm

Keep Your Growing Room Warm

Keep Your Growing Room Warm

So to keep in line with my last post then here is a few ideas to keep your growing room warm for your plants this winter. Many grow rooms are situated in modern homes with central heating.

So, the simple way would be to keep the central heating on 24/7. The problem with this is it would probably too warm for us humans to tolerate. Individual radiator thermostats are a great idea as you can control each radiator. Including the one in the growing room. If the radiator is set at a certain temperature then it will adjust the heat supplied accordingly. Dont forget that heat is given off by your lighting and ventilation so some sort of control will be required to maintain a certain temperature.

Heat control can be easy to keep with providing there are no dramatic temperature changes.

Some methods of heat control

By applying some of these methods then you will be avoiding a catastrophic drop in temperatures. Thus resulting in poor growing plants and a smaller harvest. Earlier I mentioned the lights. Of course this depends on what lights you are using . Older type lighting systems give off much heat and can higher or lower the temperature dramatically. LED lights burn at much lower temperatures and are more controllable in my opinion.

Unfortunately, here in the UK we have a large number of Victorian housing stock. These larger stone terraced houses are much more difficult to control even with central heating systems. Therefore, there should be a couple of more safe guards to look at.

  1. Fan speed controllers can be used to reduce the amount of air intake and extraction (making things hotter or cooler)
  2. For older properties you could add extra heating such as electric fan heater with an in built thermostat if possible.
  3. Its always a good idea to Insulate your grow room floor, wall and ceiling (there are many products on the market at good prices)
  4. In a water tank then use a water heater for large volumes of nutrient solution (dont put cold water onto your plants ! remember the 19c rule)
  5. Buy a maximum and minimum temperature gauge and regularly check the humidity readings.
  6. Dont pull in freezing air so obtain your intake air from a different room (Keeps the temperature ambient)
  7. Ensure your nutrients are stored at the correct room temperature
  8. Change round day and night by running your grow lights during the night and lights off during the day.
  9. I hope this will help new growers in particularly. Eric Roberts
cold weather

Hydroponics Winter Basics

Hydroponics Winter Basics

Hydroponics Winter Basics

Winter is now upon us in the northern hemisphere. Here in West Yorkshire we have already experienced several frosts and a snow storm. Thus making it impossible to do any outdoor gardening.

Most plants that are hardy have already closed down for their winter break. Leaves have fallen from the deciduous trees, with only conifers having a covering of green foliage. In my case my lemon and other citrus fruit are sitting happily in their cosy greenhouse together with LED lighting to lengthen our dark winter days.

So, indoor hydroponic growers can experience temperature fluctuations during very cold spells of weather. Roots are very intolerant of temperature changes. Changes in growth can make significant changes to growth rate if the temperature is allowed to drop bellow 19c . So at this temperature the plants roots zone could easily be damaged. The growth begins to slow and the outside of the root can be damaged.

Many experts believe that the best root temperature should be between 20c and 21c. So, to enable the plants to absorb nutrients correctly. Providing a nutrient solution that is war enough to stimulate new growth is important for the development of a healthy plant. Keeping good oxygen levels and content is imperative for good results.

Concrete floors can be a problem

When writing this blog I a thinking primarily about temperature variations in a building with concrete floors. We all know about the cold feeling when we walk inside a building with a concrete floor. Especially in winter time. So, if plants are grown under these conditions then there is likely to be a large temperature variation. This could be overlooked when starting out your growing season in spring time.

Even a small garage used for growing will suffer variations of temperature in winter time. Ass a result many growers use some type of rubber mats to help insulate their precious crop. Personally I would raise the plants off the floor to stop them getting “cold feet” and ruining the crop at a later stage.

Cold can also effect the temperature of the water tank used to mix and provide the nutrients. Growing rooms must be well insulated so the the air temperature does not change significantly in a cold spell. As I have said earlier the 19c level should not be compromised. Your plants will be open to attacks from many pests and disease. The weaker your hydroponics plant then the more likely they are of been attacked.

Of course all this will lead to a poor crop and disappointment. So prepare for winter by making your plants as cosy as possible to avoid disappointment and a poor harvest. Heaters are the answer !

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