Any rule of thumb for seed spacing?

audrey_gwFebruary 25, 2013

I know there is a rule of thumb for how deep seeds should go, which is either 2 or 3 times their diameter, depending on who you believe! I would like to be able to give a similar rule for spacing seeds in an article I'm writing, but have never actually heard of one. Has anybody else? This would be for seeds started indoors.

Thank you for reporting this comment. Undo
digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

That would depend on the size of the particular seed and the methods used for germination.

Personally I germinate 25-30 tomato and pepper seeds, as an example, in 2X2" cell while some new to the process put only 1 seed in the same size or larger cell. Herbs and perennials are often germinated in clusters of several seeds rather than spaced individually.

a rule of thumb for how deep seeds should go, which is either 2 or 3 times their diameter, depending on who you believe!

Depending on who you believe - exactly! Personally I would never advocate that as a "rule", merely as a very general guideline at best. While it is more applicable when direct seeding in the garden it has much less of a role when germinating seeds indoors.

The problem with trying to provide "rules of thumb" is that they seldom apply to many different situations.

Dave

    Bookmark   February 25, 2013 at 2:07PM
Thank you for reporting this comment. Undo
ryseryse_2004

Averages are just that -- averages. When I winter-sow in milk jugs I just throw the seeds in and water. Then they are sealed and put outdoors to freeze/thaw/be covered with snow. I just figure that when seeds self sow, they usually are not covered except by falling leaves and animals digging them in.

My success with winter sowing is excellent. They just plain don't need to be covered since they don't need protection from birds or other varmints. But - when I start plants indoors I cover with a bit of soil just to keep the seeds from drying out before germination.

    Bookmark   February 25, 2013 at 3:24PM
Thank you for reporting this comment. Undo
bugbite(z9a FL)

I plant seeds outside in 18 cell flats; bring flats into garage when I expect a freeze. I may plant up to 4 cycles a year.
I use a personal rule that works for me:
Soak most seeds (except ultra tiny) before planting. Plant in loose soil so roots can penetrate.
Barely cover and keep reasonably moist till germination.

Spacing? Plant far enough apart that I can lift them out of the cell with minimal disruption.
Right or wrong, it works for most of my seeds.
Certainly don't expect anyone else to follow what I do.

This post was edited by bugbite on Sun, Mar 3, 13 at 9:52

    Bookmark   March 2, 2013 at 3:47PM
Sign Up to comment
More Discussions
When to uncover seedlings?
I've successfully started seeds for years by bottom...
oldbuck
Potting up brassicas
I have broccoli and cabbage sown in small peat pot...
Peter (6b SE NY)
Crock pot as a "heating pad"
Just had my first cleome seed sprout after about a...
marigold.mary
Will my morning glory's lose legginess if i put them outside?
I planted morning glory seeds inside on a window about...
tlbean2004
Question about growing from seed in small greenhouse
Hi everyone, I bought a small greenhouse from Ocean...
mcolangelo1221
Sponsored Products
Lights Up | Blip Double Square 34 Inch Pendant Light
$944.00 | YLighting
Pots and Pans Storage
CliqStudios Cabinets
RION Furniture - London Sideboard, Dark Walnut/Fabric - GDRE178DW
Great Furniture Deal
30" Trevett Vessel Sink Vanity - Cherry
Signature Hardware
Antique Brass with White Linen Shade Plug-In Swing Arm Wall Lamp
Lamps Plus
Lakeland Mills Cedar Dog Bed Multicolor - PH1624
$73.81 | Hayneedle
Shadows Brown Runner: 2 Ft. 3 In. x 7 Ft. 7 In. Rug
$150.00 | Bellacor
Furniture of America Loraine Modern 4-Piece Wingback Bedroom Set
Overstock.com
© 2015 Houzz Inc. Houzz® The new way to design your home™