6,340 Garden Web Discussions | Growing from Seed

1) no seed can be said to germinate in a specific number of days (ie: 10) instead its a range as 7-15 days. (2) many seed will survive a wide range of temperatures (some tropicals are an exception) (3) the dome in my oponion is not helpful or needed for seedlings it promotes "damping off" and interfers with (by reducing) light. & increasing air temperature. normally air & soil temperature is reduced after germination.



IF your soil temps are high enough for germination and growth - you don't want to mulch until it is - you can mulch the whole thing, then pull the mulch 2-3" back from the rows where you will put the seeds, plant the seeds. Once the seedlings are 2-3" tall, slowly replace the mulch up to the sides of the row of plants.
Pine straw is a good mulch - we use it sometimes too - but it is acidic and it does take more time than other mulches to decompose so be sure to keep it away from direct contact with the stems of the plants so it won't bind up any nitrogen that they may need. OR you can layer on the pine straw and then add additional fertilizer by just scattering it over the mulch.
Dave

Thank you both for the responses, that seed database will come in very handy. Now I have another question. On the database it says to sow for most of my seeds around 68f, though my temperatures are now above that, here in florida, and I also dont have much room in my fridge to place sowed seeds. Can I start the seeds in the fridge either on a plate, or maybe the paper towel method inside of a bag thats damp, for a week, then sow them in containers? Or does the stratification need to take place in soil?
Thank you again for your help with my questions.

I prefer to put the seeds in something like a tiny zip lock with a tsp or two of moist sterile sand or moist vermiculite and put those in refrigerator. Larger seeds don't need to be completely buried, just in contact with the moist medium. Write the date on the bag, when the appropriate time has passed you can sow the entire contents of the bag, vermiculite and all if you wish without having to extract each seed.
If you are going to chill first, I'd plan for at least 2 weeks, one week isn't much time to be helpful.
The suggestions given for temperatures are approximate and not meant to be precise (with very few exceptions), a few degrees one way or the other will be fine

Lots of good ones listed in the Garden Bazaar here at GW as well has lots of past discussions scattered all over the forums on seed sources - cheap and otherwise - that a search will pull up.
The link below is to one currently running over on the Vegetable Gardening Forum with all kinds of links and there is another also running on the Tomato forum and the Heirloom forum.
Dave
Here is a link that might be useful: Good places to get seeds discussion...

I have started in both flats and individual cells/containers. I find that I save myself a step if starting in cells/cups because depending on the seed variety I don't need to transplant to larger comtainers until being planted in the garden. When using flats it does seem a bit easier to weed out smaller plants. I think it really comes down to a space issue and how much room you want to dedicate to seed starting. Needless to say flats can be a bit more compact and easier to move depending on your setup.

I am in Canada, so I am not sure if it is the same in the US, but I can get it just about anywhere, Sprawlmart, Homedepot, Lowes, anywhere that has a small gardening section, usually in the area where you would pick up rooting hormone, or those small bottles of african violet drops... Not that No damp has anything to do with African Violets, they just tend to be in the same area.

And BTW I am the original poster of this thread too.. So I wont miss the responses... :)
Oops! Good. ;)
Dave
Beatrice - it is all explained in detail in the Seed Starting Lighting FAQ here.

Last year I experimented a lot with starting seeds indoors and learned a few things in the process. I thought IÂd share a bit of what I learned through trial and error so that you can skip my mistakes.
LIGHT
The hardest thing to provide seeds started indoors is light. ItÂs almost impossible to use just the light from windows. Most likely youÂll need a grow light. You can use something as simple as an incandescent grow bulb that fits into a regular household lamp. They are available for purchase for between $5-$15. I have one such bulb in an old lamp that has a moveable arm.
YouÂll need to keep the light on for between 12-15 hours each day. The easiest way to do this is to use a timer that you plug the lamp into, which will turn the light on and off automatically. Timers are really cheap and can be picked up at a hardware store. Of course, you could also turn the lights on and off yourself. But seeds need both light and dark, so donÂt think you can get ahead by leaving the light on all the time.
SOIL
IÂve had the best results using peat moss mixed with perlite. IÂve also had success with Jiffy peat pellets. What hasnÂt worked for me is regular potting soil. I donÂt know why, but IÂve had trouble getting good germination results with the potting soil I use outdoors.
You should know that peat may not be the most environmentally friendly seed starting medium. A more eco-sensitive option is coir, which is made from the husks of coconuts. You should be able to get peat or coconut coir where ever you purchase potting soil.
WHEN TO SOW
The first thing you need to know is when your last frost date is. This is the day which is, on average, the last day your area can reasonably expect a frost. If you donÂt know your last frost date, this site will tell you the date for your area.
After you know that date, count backwards 4-6 weeks. That is the date you should sow your seeds indoors. The longer the particular type of seed you are growing takes to germinate, the more time you should allow. But a quick to germinate seed should be fine with 4 weeks. You can find out how long a particular seed takes to germinate by looking at the back of the seedÂs packet.
WATERING
In my experience, itÂs best to water seedlings and yet-to-sprout seeds from the bottom. By this I mean putting the container the seed/ling is growing in into a larger container that has an inch or two of water in the bottom and allow the dirt in the container to draw up the water through the drainage hole.
If you water from the top (i.e. the normal way) you are likely to disrupt the seed or damage a delicate seedling.
Here is a link that might be useful: landscaping salt lake city utah

Very interesting, my mom loves to plant any kinds of tree I'm sure she will be very interested.
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Hard to avoid a peat-based mix since 99% of them are nothing more than peat, perlite or vermiculite, and some lime to neutralize the pH. To that, some manufacturers will add various forms of fertilizers to their growing mixes (not the seed starting mixes).
But I would also disagree that it is the peat based mediums that increase the likely hood of damp-off. Soil/dirt based mixes have a far greater incidence of damp-off associated with them. But primarily, damp-off is caused by excess moisture and that lies in the hands of the gardener. ;)
Here are several previous discussions on various mixes - note the distinction between sterile seed starting mixes and growing/potting mixes.
My personal preference is ProMix BX, recommended by many, but it is not available everywhere.
What brand of potting soil do you prefer?
There are many more that a search here will pull up for you but these should get you started.
Dave

Depending on what I am planting, I use different products. For the longest time I used a standard potting mix that is peat based. Now I tend to start most smaller seeds in a seed starting mix that is very light and fluffy. Larger seeds go into a commercial seed potting mix.



Sorry but I have to disagree. While it is true that "Tomato's are a warm/hot weather plant. they suffer in any temperature below 70F day & night.." is somewhat true for full grown plants in the garden, it is not true for seedlings. Most tomato seedlings are grown in greenhouses where the air temp is maintained between 55 and 65 to avoid leggy growth and associated problems.
Your garage will work and is used by many for starting seeds. I have linked a recent post on this question here below. It also links to a long discussion on the same issue over on the growing tomatoes forum here with even more details.
You only need to make a couple of modifications to be successful.
1 - place some sort of insulation on the shelf above. Anything to keep the warmth from escaping through the self above - a folded blanket, piece of foam, old newspapers, etc. and a another "chill block" on the shelf you will be using to keep the cold air from the floor from getting to the plants. You will just set the trays of plants on top of it.
2 - buy some cheap clear plastic to create a tent around the set of shelves. It needs to be cut at the corners or down the center to allow you access and so you can open it for air when the temp inside gets above 70-75 for the heat the lights put out.
3 - include inside the tent a small thermometer to monitor temps and a small fan to help circulate the air around the plants.
4 - if the temps in the garage drop toward freezing you may need a space heater for those really really cold nights.
Good luck with your plants. Be sure to harden them off well before putting them in the garden. ;)
Dave
PS: plants in the garden will easily tolerate temps down into the upper 40's if there is no wind. They won't set fruit at those temps but the plants will survive. It is the soil temps in the garden that control plant safety in the spring, not the air temps. ;)
Here is a link that might be useful: Growing Seeds in an Unheated garage?
would it be easier to just grow them indoors with the setup I have or would I still need to create a greenhouse out of plastic with a fan and all?? wonder if I can talk my wife into that......:/
list of tomato seeds I have started already.
1. Cherokee Purple
2. Cherokee Green
3. Speckled Roman
4. Delicious tomato
5. Brandy Boy
6. Beefsteak
7. Roller Coaster Cherry
8. Riesenstraube