6,340 Garden Web Discussions | Growing from Seed


Hydrostone, hydroton, other names too - clay pellet growing medium
Here is a link that might be useful: Example here


I used peat pots last year when I started from seed. Had every seed sprout & they all survived outside when I moved them. They are a pain to keep moist & I've had the white mold issue too, but it never affected any of my plants. They are cheap & biodegradable so I will continue to use them.

I have very good results using peat pellets with a heat mat and thermostat set at 75 degrees. I'm currently using the black plastic pots and styrofoam cups when I pot up, but I've been tempted to try the peat pots. Geneo74, any idea what the brand is of the peat pots you describe?
This post was edited by dsb22 on Thu, Apr 4, 13 at 0:52

Basil and most other herbs will probably bounce back with new grow as long as the root ball wasn't damaged. They will sprout new growth from the rootball if it is just kept lightly moist.
The peppers are another issue. Some of them 'might' sprout some new growth if there is an unbroken/undamaged node left on the stem. But most of them won't and if they do it will take quite a while to do it and the growth of the plant will always be stunted.
We often take cuttings from pepper plants in the nursery to root new cuttings but the original plant never fully recovers. Woody stem plants like peppers usually switch to a short bushy growth form and any peppers it produces are very small. Honestly I would plan to replace them.
Hope this helps.
Dave

You will need annuals of course rather than perennials and the red color choice limits you some but then you already know that. Still I would also post this over on the Annuals forum here for more suggestions since that is the focus of that forum. There are several past discussions there on specific color recommendations.
My suggestions would be reds: Century Fire Celosia (start indoors now, seeds will germinate in ten days at 70 degrees), Scarlet Sage Salvia (somewhat difficult and slow to germinate so start ASAP and they need light to germinate 12 to 15 days at 70 degrees to 75 degrees), and Aztec Red Verbena (easy to germinate indoors at 75 degrees). And of course there are always the common red geraniums.
Hope this helps and good luck with all the wedding plans.
Dave
PS: just me but I'd toss in a few black flowers spots too just for contrast. :)


I am no expert and don't know if there is an exact time to snip back or not. For me it depended on how many seedlings I had in a cell. With no rhyme or reason I often cut back to two in each cell before potting up. After potting up I waited to see which was more vigorous then snipped the other off. Lately I have been either planting in flats or only planting one seed per cell so haven't had to snip back.
Happy spring planting!!

I hate buying pre-mix formulas because they are the same ingredients we can buy separately and mix together for alot less cost.
I'm sorry but that just isn't accurate. It is much more complex than just stirring together random amounts of ingredients. Quality commercial mixes are based on well-researched recipes, carefully pH balanced, and have wetting agents and stabilizers added to them and then sterilized. Cost is relative if one makes their own mix but then loses all their plants, right?
Professional quality mixes such as ProMix BX and Metro Mix 360 can be purchased in whole bales for much less than the cost of the equivalent number of bags of components and have 3x the benefits. So no, I can never recommend making your own seed starting mix. Make your own growing mix for established plants if you wish, but not for seed starting.
GH environmental management is a science and managing differs greatly from house to house even when they are right next to each other like mine. Automatic, thermostat controlled systems is the most effective way to accomplish it but even they have limitations and can be expensive.
You can learn much more about GH management over on that forum rather than here but you need to do everything you can to stabilize your temp range without sacrificing light exposure. The ideal goal for growing plants is no less than 45 at night and no more than 65-70 in the day. Germination trays are kept in a separate enclosure in the GH to allow for increased soil heating and yes the flats are removed from soil heating ASAp as germination begins. The remaining will either germinate shortly or they never would have anyway..
Auto systems include such things as auto sun screens set to a thermostat that unfold and contract as needed, sectional sunscreens that provide heavier screening on the west side than on the east or overhead rather than on the sides depending on how the house is situated, auto vent openers, auto exhaust fans, evaporative coolers on thermostats, auto heaters if needed, etc. In other words the more automatic you can make the systems the better.
Hope this is of help.
Dave

Dave,
Thanks so much. What you say makes sence. Germination mix is alot more important than growing mix, isn't it?
45* at night....Really??!! Brrrr. And keeping the hse at 70* or below during the day would be impossible with the set up I have now. I need to revamp my whole seed-starting process starting with temperature management, don't I? Automatic everything would be very cost prohibitive, so I need to figure out something. It makes sence too, what you wrote: greenhouse operations have different sections for germinating and growing...I'm thinking of turning my spare bedroom into a small germination room, and leave the greenhouse just for growing on.
Thanks again.

Do you have seeds to spare that you could dissect a couple and investigate the interior, see if they are fully formed seeds?
I don't know why yours would be spilling their seeds this time of year, cones on Spanish fir don't usually remain on the tree when they should have ripened by fall as with some conifers that more typically hang onto theirs :).
See if this site - Oregon State edu. - helps. There's a photo of Spring (pollen) cones, then if you click next on the right at the top of the picture it shows SF cones that have ripened at the end of the season.
If you find your tree hasn't given you empty or partially formed seeds, you could always try sowing, nothing to lose. Day/night temps that will average about 40 probably best and it's beginning to get a little late (though not by much) for that here in WA, your refrigerator could extend a moist chill of 3-4 weeks. Bring back to warmer for germination.
Here is a link that might be useful: Oregon State spanish fir

Thanks again for the further info...I actually pushed on one of the seeds, it was squishy and when I popped it open what appeared as tree sap came out! Maybe not a fully formed seed. It's a young tree so I assumed I wouldn't be able to get good seeds off of it. The Spanish Fir is a cool tree though, I'll probably plant a couple more soon!

Frankly, I don't think you're going to have much luck germinating those seeds, they're just too old. Hardly any vegetable seed will be viable after 4 or 5 years (see link to chart below). It might be fun to try though and if you do decide to go for it, I wish you the best of luck.
Art
Here is a link that might be useful: Life Expectancy of Vegetable Seeds

Definitely should try it and report back to us. Soak them overnight, some say in soak in tea. Plant in moist sand, cover and keep at about 70OF.
If you really want the or think they may have value search university web sites for assistance. They may know to use something called gibbelenes.




I should start by saying this is my first year trying peppers from seed.
I am growing: mini bells, mini red bells (two diff traded seed sources), king of the north, peppadew, and Doe..which are all sweets. For hots I'm growing: jalapeno, orange habs, thai orange, and chinese 5 color.
I soaked all my seeds overnight in camomile and then started them in a Park biodome. within a week (with no bottom heating) most of the varieties had visible roots coming out of the seeds (you can peek down into the hole in the park sponge). Within 10 days the jalapenos and mini bells had green sprouts.
So for what thats worth, maybe the camomile is good for getting things going.
The other experiment I did was with using a crock pot to generate bottom heat. I put 3 C of water into the crock pot, covered it with a towel, then put a thick metal tray on top and the biodome on top of that. I put the crock on "warm" (not high or low) and using an air thermometer timed how long it took to get to 90 degrees and how long it took for the time to coast off. On warm it took about an hour to an hour and 20 to get up to 90, then I would shut the crock off, and it would stay warm in the biodome (above 70) for up to 4.5-5 hours afterwards.
Because it all depends a bit on your crock pot and your ambient household temps, its probably worth doing it while keeping an eye on a thermometer if you want to try, and it probably only works if you are doing small scale seed starting, like one tray that needs bottom heat, rather than an industrial set up. But it is cheaper than buying into the heat mats, and after your've timed out your temp cycle you can regulate the crock pot using a $5-10 regular outlet timer (like the type people use to turn lamps off and on when they are away from home) to cycle the crock through on and off to keep temps within the 70-90 range.
Too much to read to know my $10 heat mat does peppers, Sorry.