Annuals forum: using a heat mat to start zinnias from seed

Views: 473, Replies: 3 » Jump to the end
PA (Zone 6a)
pinkruffles
Jan 18, 2018 7:57 PM CST
I am planning on growing zinnias from seed, and starting them indoors using a heat mat. ( I know that many sources say it's even better to direct sow them, but I get too much competition from weeds and other self sowing annuals to do that) I have read the advice of other gardeners that say they remove the heat mat as soon as the zinnias germinate. But if zinnias like heat and warm soil, why wouldn't you let the heat mat on longer? I'm especially wondering about this because the room I'd be keeping them in is unheated, so it's quite cool in there.
Thanks for your input!
Name: ZenMan
rural Kansas (Zone 5b)
Kansas 5b
Annuals Keeper of Poultry Enjoys or suffers cold winters Bee Lover Dragonflies Garden Photography
Hybridizer Region: United States of America Hummingbirder Butterflies Seed Starter Garden Ideas: Level 2
ZenMan
Jan 20, 2018 1:30 AM CST
pinkruffles said:But if zinnias like heat and warm soil, why wouldn't you let the heat mat on longer? I'm especially wondering about this because the room I'd be keeping them in is unheated, so it's quite cool in there.

Hi PinkRuffles,

Since the room is unheated, leaving the heat mat on is a good idea. Don't get it too hot (if it is thermostatically controlled) and be aware that the warmth can dry out your pots faster, so watch that to water them as necessary.

ZM
I tip my hat to you.
Name: Yardenman
Maryland (Zone 7a)
Image
Yardenman
Jan 27, 2018 2:32 AM CST
pinkruffles said:I am planning on growing zinnias from seed, and starting them indoors using a heat mat. ( I know that many sources say it's even better to direct sow them, but I get too much competition from weeds and other self sowing annuals to do that) I have read the advice of other gardeners that say they remove the heat mat as soon as the zinnias germinate. But if zinnias like heat and warm soil, why wouldn't you let the heat mat on longer? I'm especially wondering about this because the room I'd be keeping them in is unheated, so it's quite cool in there.
Thanks for your input!


My basement gets down to 60F and I have no problem with zinnia (or any other flower seed) germination. Is my basement just unusually warm?

Name: Frank Mosher
Nova Scotia, Canada (Zone 6a)
Lover of wildlife (Raccoon badge) Birds Roses Clematis Lilies Peonies
Region: Canadian Photo Contest Winner: 2017 Million Pollinator Garden Challenge
Image
fwmosher
Feb 9, 2018 11:12 AM CST
I find zinnias one of the easiest plants to start from seed on a heating pad with lights. But, as with all seeds started and continued in this manner, one has to be cautious, particularly when using available potting soils. They are composed of three/quarters peat moss. Your growing containers will dry out VERY RAPIDLY! Water often. Cheers!

« Garden.org Homepage
« Back to the top
« Forums List
« Annuals forum
You must first create a username and login before you can reply to this thread.

Member Login:

Username:

Password:

[ Join now ]

Today's site banner is by TBGDN and is called "Autumn Acorns"