Sustainable Paper Pots for Better Seedlings and Starts

September 8, 2009 by Rick

At Riverview Flower Farm we use paper pots for starting plants for several reasons. They primary reason is that paper pots allow for the best possible root system for young transplants. The paper breathes and the soil dries out quicker than soil in a hard tray or plastic pot. Paper breathes much like a porous clay pot which has been the favorite for hundreds of years because it breathes. You get the benefits of clay without the cost and waste of resources. The root tips grow to the paper and are air pruned. The roots branch behind the air pruned tips to quickly fill the paper pot with a fibrous root system that is ready to plant up to a week earlier than plants started in plastic pots or trays. The roots are concentrated within and throughout the soil mass and are less prone to damage from drying or water molds and fungus from over-watering. The paper disintegrates and unlike peat pots the roots grow right through and you don't have to remove the bottom or tear any roots at planting. This alone will hasten growth and harvest by one week or more.

At the Farm we use a commercial paper pot making machine to make Ellepots for our starters and seedlings we plant to our gallon plastic pots. We use plastic gallon pots made from mostly recycled and recyclable plastic as the most practical way to deliver a product that can withstand hot conditions in Florida and keep the root system from drying out and dying. Check out also our Pot-in-Pot method to get the most out of your plants using and reusing these pots and 21 reasons and counting on why you should consider this method.

ClassicSelections_clip_image006 

We also use Ellepot paper pots for our Classic Selections

ClassicCreations_clip_image002

and for our Classic Creations

CubanGoldDurantaFromSausEdge

and for our innovative very popular and time saving border making plants in the SausEdge TM

You should click here and follow us on

Clickety click here and follow us on


Comments (4) -

January 21. 2009 13:33

Hey Rick,
  A lot of us are doing a lot more cuttings and seeds to save money, and it's a learning process (in other words, this may be a dumb question but I'm asking anyway!)
  My instinct is to keep cuttings super wet to encourage rooting. I've had 50-50 success. It interests me that you say new starts should be allowed to dry out. I keep mine wet. Always. Some like it, some don't -- even when it's the same plant.
  I know there's not a one-size-fits-all answer, but in general, do we want to let our cuttings dry out a bit?
  Love the info on paper and air-pruning. Thanks! I'm guessing (hoping) this happens naturally, without some intervention on our part.

Penny Carnathan

January 24. 2009 03:55

Penny,
That's a great question and the answer is not so obvious. How does a propagator know if there is enough air in the media for the cutting tip to harden and callus and enough moisture to keep the plant turgid enough to not wilt and form root initials near the base of the stem where the plant hormones have converged in reaction to being cut. Part of the secret is the paper pot which won't hold excess water and the other parts are a soil that has lots of pore space for air and some organic matter that holds just enough moisture for the rooting process to happen. You only need to add water as mist if the plant wilts or losses turgidity during the rooting process. With warm temperatures the rooting happens within 7-10 days on soft herbaceous cuttings like coleus and impatiens and 21-28 days on woody items like roses and crotons. Use Rooting hormones very lightly on woody items. Most important is a soil mix that is free of water molds. Water molds will rot the wounded cutting.  

rick

January 27. 2009 02:22

Thank you!
I'm gonna guess half my rootings are rotting and the other half I've neglected just enough to allow for life.
  I have about a gazillion more questions on the topic, so I'm seeing a future Dig This column.
  
  (

Penny Carnathan

February 14. 2009 19:40

Rick, that's great advice, thanks. I too take a lot of plant cuttings and replant them for friends and I'd say about 75% of them survive. I will be trying the paper pot approach and hoping for a higher survival percentage. Riverview flower farm seems to be doing something right.

Daniel Puroclean