How to squeeze multiple harvests per year out of a greenhouse

[surfingrob]

Any ideas on the best methods to have multiple harvests per year in a large greenhouse? Do people just do perpetual harvest by sectioning their greenhouses? I've heard of some people getting 2 or 3 crops per year or even more. How to accomplish this? Would love to know.

Thanks

 

[krunchbubble]

Any ideas on the best methods to have multiple harvests per year in a large greenhouse? Do people just do perpetual harvest by sectioning their greenhouses? I've heard of some people getting 2 or 3 crops per year or even more. How to accomplish this? Would love to know.

Thanks

Light dep...

 

[EsterEssence]

Light dep in the spring, extra light hours in the fall and winter plus heat, cooling...

 

[Bulldog420]

4 crops a year if your doing it right.

 

[aridbud]

Yep, sectioning off, shade cloth.

 

[mr.shiva]

More greenhouses to get the next ones ready to flip. Daylight harvesting . Big ass whisperwatt helps also

 

[Backyard Farmer]

what Mr Shiva said

 

[highcountrygrow]

veg shit put them out in Gh end feb(supplemental lighting) harvest by end of may refilll and light dep in june july harvest and refill by aug/sept to harvest by end of dec for the final harvest of the year.
Repeat.repeat.reapeat.

 

[Noonin NorCal]

you can do at least 3 pulls, we are on our 3rd and final run we started sometime in April. all depends on strains used plus having a side room for veg. Wont be doing any winter runs we don't have enough power outside for heating

 

[m4n]

Anyone running a greenhouse in the winter? Im out in modesto area and got one of those cheap 20ft ebay greenhouses for free.... thinking about vegging my plants for another 3 weeks and doing 18 plants in 5 gallons of coco...idk the area or how cold it gets

 

[Backyard Farmer]

Do it to it and if you need to throw a few 1000 HPS out there to light em up when the weathers bad

 

[Noonin NorCal]

you will need a heater it will dip to 40 or mid 30's unless you have some kind of heater going at night, i think maybe some high powered dehumidier will add heat if you dont have a heater.

 

[Rainmaker]

Bumping a winter greenhouse crop....all sativas!

 

[Backyard Farmer]

N. Cold temps dehumidifier a don't work unless they're dessicant type dehums

 

[stoned-trout]

heat and lights......blackout curtains help too.....

 

[milkman1]

How many folks out there run an early spring crop with no light dep? Can any strains tolerate this?

3 outdoor harvests are nice, 4 takes some external energy around these parts, I'll pass...

I'm attempting a manual light dep starting mid March, chopping in late May with another going in right after to harvest mid July. Then the full terms have the space all to themselves until fall.

 

[Backyard Farmer]

Thats a lot of days of pulling tarp. Sorry.

 

[IntelliGeneS]

Light deprivation/supplementation for off-season growth of short-day Cannabis.

And/or grow photoperiod-insensitive (Autoflowering) Cannabis.

 

[Rainmaker]

Early spring can be done without pulling tarp. Crop must be flowered by mid-March...to be done by mid-May. Which means vegging at least a month prior...in the greenie with lights..or prepping indoor. Faster flowering varieties are preferred...as anything that goes longer does have the possibility to bolt in the end. Anything is possible...

 

[Limeygreen]

I know someone aiming to harvest weekly. They section off areas for clones, veg and flower. They have lights and curtains (blackout of course) You can do it if you have constant supply of new plants to go into flower at the same rate you harvest and your flowering section is large enough to accommodate it. If you plant to harvest 9 plants a week on a 9 week flowering strain, you need 10 sets of plants all starting to flower 1 week apart. If you just slide everything over as you go the ones that are ready to harvest can be kept on one side while the newest ones fill the empty spot after you have slid everything over.