6,340 Garden Web Discussions | Growing from Seed


By warm enough I mean no more frosts likely. Though if you are obsessive compulsive enough you could put little plastic cups over them if you get a frost warning. I am in zone 4 where the last frost date is officially March 31st. I usually push it to mid March and keep my fingers crossed, but its definitely to early right now for me to put out anything that isn't frost tolerant. You could also keep them in pots for a while, and take them outside during the day, bring them in at night, but that wont help the over crowding. Search "hardening off" on this thread before you move them outside, so that you understand that they need a gentle transition. - Petunias will have the same issues, but they are much slower growers than zinnia, & need more babying, I am trying them for the first time this year myself, so cant give you any solid advice.

You are in zone 5, so if you plant outside now, they will still go through some cold period. Usually the needed period is only about a month. The seeds thought they have gone through fall/winter, so when the weather warms up again, they start to sprout.
But I have also grown some without stratification. The germination rate is lower, but we usually have lots of coneflower seeds. I would suggest growing lots of them (or all that you have). In the fall you can transplant some of them.

I have sown the common purple cone flower and the white swan without any cold period (straight from the package) and had at least 80% germination in 4 days. I sowed coneflower Magnus a week ago and only have 2 sprouting under lights. I probably should have chilled them, but I always try the easiest thing first to see if it works.


I water my tomatoes and peppers overhead, keep them in an unheated workshop, use plain old potting soil and I've never had damping off. But while we get foggy mornings, California isn't typically as humid as states east of the Rockies, so maybe it's the natural climate here that is helping me out, or something I'm unwittingly doing that is offsetting nasty habits.
I do find it funny that some people do things other people swear against and come up with the same results. The more time I spend on these forums, the less I'm finding myself using terms like "must". Not to say there isn't a ton of experience to learn from on these forums. There most definitely is.
Here is a link that might be useful: my blog

I never have a problem with damping off. Here's what I do. YMMV. First, I plant in plastic (6-pack) cells. I fill the cells with a good quality soiless mix (no particular brand - but labeled for germination). I water the mix (in the trays) with boiling water. When they are thoroughly wet, I put them aside overnight before planting. This allows the mix to become uniformly moist. If there is any water left in the tray, I dump it out (rarely happens). The next day I plant. I cover the seeds with bird gravel and lightly water. I cover the trays with a humidity dome, propped open and put them on an unlit shelf until germination (except for those that need light to germinate). It is usually a few days before I need to water them again, but I check thm daily. Make sure the humidity domes are propped open to allow for good air circulation.

I don't fertilize the seedlings I start in soiless mix. For one thing, depending on what you buy, the mix may contain all you need to get them through transplantation. For another, I've found that generally "less is more" when it comes to the question of what and whether to add things to my seed starts. Knock wood, I have very good, consistent results with healthy plants.

mandolls, sorry I misread your question earlier. The reason people use fish/seaweed fertilizer on soilless mix is probably because it still works. The breakdown is going to take some time but not that long.
The soil is relatively sterile but not perfectly sterile, but you always have something in the air. If you imagine putting a little piece of fish or moist seaweed on your soilless mix, it is not likely that the fish/seaweed will not spoil because the medium is sterile. It is going to breakdown and pretty fast too.
So all you have is a slightly delayed fertilizing. I would say if you happen to have chemical fertilizer, use them (diluted) for your seedlings; if not the organic should work too....


I am using both peat pots and a biodegradable egg carton...no mold on the peat pots, but the egg cartons have a spider-like white mold forming around the edges...I tried the 10-1 hp solution, so will see how that works. Thanks for all the good advice, also.


You can upload a photo here--you just need to upload it to a photo sharing website first to get the html code. Once you have the html code, there's some text that has to be added at the beginning and end in order for the photo to display.
From your description, my guess would be Hibiscus syriacus/rose of Sharon. There are varieties with pink flowers--I've got one--as well as blue, white and white w/maroon eye zone. Are the seeds fuzzy/hairy around the edges? I have rose of Sharon seeds from my shrubs and am wondering if that could be what you've got. I don't have a picture of the seeds but here's one of the flower:


If you go to the FAQ of this Forum, you will find detailed instructions for the laundry basket method. I've never used it but it seems much easier than the usual in and out method. Here's a link:
http://faq.gardenweb.com/faq/lists/seed/2003045235010103.html

I use the laundry basket when I pot up seedlings from starter trays to plastic cups, run out of space under the lights on my growing bench/table, and move them to my greenhouse. After several days, I remove the basket, and they have adjusted to the sunlight of the greenhouse.
When it gets warm enough for them to spend nights outside, I move them to a screen covered shelter I built from storm doors and a sliding patio door screen. They have always made the transition from the greenhouse to this shelter, and from the shelter to my garden without apparent stress.

Here's a link to the Seed Exchange for you.
Here is a link that might be useful: Garden Web Seed Exchange

Just wanted to share my excitement of discovering that I am now growing a quince plant! Last December I managed to find quinces at the farmer's market and later tried saving and planting the seeds. Unfortunately, I really didn't do my research beforehand about properly saving the seeds, and they got moldy. The seeds I planted never sprouted, and I figured I did something wrong.
HOWEVER, despite my poor gardening skills one quince seed has managed to sprout! I completely forgot about it until the leaves popped up. Nature finds its own way. I am going to be hovering over that thing for the next six months, watching it grow.
And this may be my imagination, but I can almost swear that the little seedling has a faint, sweet quince fragrance.

Northerner, I'm in Oklahoma, and my Baptistas are pretty late getting started. They are coming up now, stalks that look rather like asparagus, one has a flower bud. I moved them year before last, and they do not like being moved, so went black & dormant - so I was happy they came back at all, then they were completely eaten by caterpillars, so once again, I'm happy they survived. I did nothing to protect them for winter, which got pretty cold this year.
If it gives you a clue timing-wise, I planted tomatoes today, although I usually wait until the 15th.

Thank you for the timing info, Betty. If yours are now coming up in Zone 7 USA, it's probably too early for me to expect any visible activity from mine (Zone 5A Canada). You planted tomatoes today, and I started tomatoes under lights today, so I will give them a bit more time and use that as a benchmark. Enjoy your tomatoes!!


I've had that happen quite often, it can happen on any seedling. I always spray the shell of that seed with water until it gets soft (which happens fast). After that, it's usually easily pulled off (gently holding the green seed leaf with tweezers). Even if you break the tip of the seed leaf (cotyledon) off the seedling will continue to grow just fine. Just go slow and easy and you'll be fine.
Thanks. I tried to do that on Sunday evening and am worried that I may have mangled them - one seedling is still greenish and the other disappeared somewhere into the soil. Mostly I couldn't figure out how to water/soften the shells very well. Crossing my fingers!