6,340 Garden Web Discussions | Growing from Seed

Another reason to hold back would be if your last average frost date is still in the future. Just because the weather's warm now, does not mean the warmth is here to stay. We had temps in the 80's at the beginning of the week. Yesterday the high was 45 and the hilltowns had night temps in the twenties. Planting out early would have been disaster, unless the gardener had a way to protect the plants from a hard freeze. You're in a warmer zone, so you may be good to go.
Those guidelines for what to start when are intended to help the gardener have a healthy plant of an appropriate size at the safe plant-out date, usually the last average frost date.

A common mis-perception. ;) Not only can the use of bottom heat post-germination cause leggyness but it also retards root development. In fact it can even "cook" (kill) young roots. So you would be sacrificing root development - which is the most important form of growth at this stage - for top growth.
With seedlings, slow top growth is what you are after. That's why professional growers in greenhouses work very hard to maintain air temps of 65 degrees max.
Dave



I have no answer as we're in different climates, but am interested in any others answers. Is it appropriate for me to ask similar question here, or start new thread? Im in low desert and already in high 80's. Got yellow bells from seed in plastic cups now 2 inches tall. Is it time to plant in the ground? thanks.

First; Your broccoli is just fine. New Broccoli leaves are green, Mature leaves do have a grayish cast due to a fine fuzzy coating on the leaves. Wet the top of the leaf a bit and you will see the green.
I'm assuming the fertilizer is water soluable. If that's the case then yes you can fertilize everything sparingly, including the peppers, but use the fertilizer at half or even 1/4 strength and do it after you water. Fertilizing a dry plant can cause root burn

I concur with Keriann; that kind of problem among multiple flats has got to mean that either you had a fungus in your flats or starting mix to begin with OR that you've somehow gone from sucessful seed-starter to causing damping off conditions since last year. Since you said you'd started seeds successfully before, it seems unlikely that you'd suddenly start over-watering or using techniques likely to cause damping off, unless you've changed your setup or location somehow. So if everything else is the same as years past, you gotta have had unsterile mix or containers. And sorry to say, no amount of No Damp or anything else is going to fix a systemic problem like that. I'm afraid your only alternative (as I see it) is dumping everything, sterilizing everything and starting again. Might get fresh mix too, just to be safe.

No one can give you a definitive answer to that. The maximum number of plants would depend on the plants, and how big their mature size will be. For instance half a dozen lobelia would take the same room as 1 petunia or Impatien.
5 is a good number if you are planting only Petunias or Impatiens, but then it would depend on the size of the basket. You can plant things closer in a hanging basket than you would in the ground.

Here is a good start on reading about leggy seedlings for you.
Dave
Here is a link that might be useful: Leggy seedlings discussions

I see on your other post on the Tomato forum that we are talking about tomatoes. They are quite leggy per your pic posted there. Tomatoes benefit from deep transplanting ASAP. Bury them right up to just below the leaves and then provide more, closer light or they will just get leggy again.
Dave

I don't run a fan, no. We get the wind sweeping down the plain here, but my yard is pretty dang sheltered, with houses and big trees and fences all around, so I've never had a problem (knock on wood). It was whipping around pretty good last night/this morning with a thunderstorm, and everything still looks good, with the exception of some calendula that I started too early and it got a bit leggy before I planted it out. But even that is just kind of laying over, it's not broken or anything. So I think the only things you'd have to worry about would be real tall, leggy seedlings, which I guess should be avoided anyway. In an ideal world. :)

Queenofthemountain, your hardening off plan sounds good to me. I'd protect tomatoes from 45* and lower, unless you wintersowed them. I'm wintersowing mine this year, so the seeds are outside now, waiting to sprout. My forecast is for the thirties tonight and 30* F tomorrow night. My peppers are indoors though, and won't go outside until May.
I run a fan, but not all day. I run it at least 15 minutes each day though. I'm thinking about putting the fan on a timer. Air movement helps prevent damping off and other nasties. It also encourages the seedlings to build stronger, shorter stems. If your tomatoes are leggy just plant them deeper when you transplant. You can plant them deeper vertically, or trench them so the stems go in the soil diagonally. Doesn't work with other veggies that I know of, though it might work on other nightshades. Best to grow them short and strong to begin with. One of the tricks I've learned with tomatoes is to brush my hand across the tops of the seedlings. Follow the link for more info. I enjoy the smell of tomato foliage so I like petting my pet tomatoes. :-)
Here is a link that might be useful: Brooklyn Botanic Garden - Sheperd Ogden article

Bottom water all of them when the top 3/4 is dry.
You may need to mist slow growers such as impatiens and begonias. I would keep those moist until they get a few sets of true leaves.
And yes, you are correct (as I now know) that bottom watering encourages roots to reach down in search of water thus producing a better root system.
Keriann~

Some had partially germinated, others had not. I'm in Long Beach, California. If you think direct sowing would be a better approach, I'll try that instead. This is my first season starting from seed, and boy has it been frustrating! Hopefully by next year I'll have worked out all the kinks.
~Mike

I gotcha. No worries, trial and error are the name of the game. :) In case you haven't, do check out the FAQ on the front page of this forum. Most folks start seeds early indoors and grow under lights until it's time to plant outside. I'd direct sow everything except possibly the peppers and tomatoes; hopefully someone else will chime in here with opinions. Those two germinate a bit better at higher temperatures, so if you could sprout them indoors on a warm surface, you'd probably get faster germination. My experience is with starting seeds indoors under lights, so I'm not sure about the logistics of sprouting them indoors and then transitioning immediately to sunshine/outdoors, so I don't know if that's do-able. It might be easier to get yourself a couple of cheap shop lights for those. You might also try the vegetable forum and tomclothier.net for best germination temps/techniques for your various veggies. Hope that helps. Don't get discouraged, once you get the basics down, you'll do great! :)

That's funny Dave (about the pic size)
Ten years ago before everything went digital or High Speed Satellite,Cable etc etc..I used to get so mad at people posting pics that would take me actual minutes to download... AAAARRRGGHH.. But Now... I don't even consider it,you can post the largest pic known to man, and the technology to download is so fast....It is incredible.... but since you are bringing it up now,maybe it WOULD STILL behoove us to see if many (or any) forumites,are still having those issues that I thought were absolutely gone for good. We should take a poll and see who is still stuck in analog or some other slow beast and if it is a significant number of people,be more considerate to them.. I just know when I am researching anything (like I just did with a "garden centipede" ,I don't want some small pic to look at ,I want full clarity,the bigger the better....
BTW... Do you have to turn a crank on your computer,to fire it up ;-) Just Kiddin'.. Love Ya Man ;-)

BTW... Do you have to turn a crank on your computer,to fire it up ;-)
Nah I'm high speed satellite. But I do know lots of folks out in the country who are stuck with dial-up service as it is still all that is available in many rural areas if they can't hoof the bill for satellite. Life in the country is very different than for you urbanopolis dwellers. ;)
Dave


I like to cut slightly above soil line & try not to soak the cut area during watering (if possible) to minimize the chance of rot traveling down the roots, but I may be overcautious. Newspaper should be as good or better as long as it's a good, firm grass block.


Marigolds are pretty tough flowers--I'm not surprised