Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [seedlings]

Small juvenile plants which have just germinated.

1
vote
2answers
165 views

Should I prune double “trunk” of orange tree seedling?

A few months ago (IIRC around last spring/summer), I planted an orange seed, which sprouted "twice" (as in, two main growths). I left both going, since by the time it had a few leaves, most of the ...
2
votes
0answers
29 views

Distance and spacing of LED growlights for propagation

I am planning to make an indoor propagation setup which consists of h:30cm x w:40 x L:50cm recycled polystyrene boxes and full spectrum LED panels. Clearly, the biggest limitation is height in this ...
1
vote
2answers
59 views

Why growing fruit trees from seed won't yield the same fruit of the same tree?

Why is it necessary to graft a tree to get the desired species and not rely on the tree's seeds?
2
votes
1answer
21 views

Almond twin seedling

I accidentally dug out an almond seedling to realize that all the 3 shoots come from the same seed. Is this a common occurrence? What is the branch in the middle with a brownish tip that I broke ...
1
vote
1answer
23 views

Is this how cucumber seedlings react to cold?

Some days ago, I planted cucumber seeds in my garden. They didn't all sprout at the same time, and the ones that I'm showing are the ones that appeared few days later than others. The climate is ...
2
votes
1answer
55 views

Can trees be propagated/started over winter indoors, or would that 'tire them out'?

I found a calendar of propagation activities which seems very helpful, and it says that hardwood cuttings can be taken and started for deciduous trees throughout winter. I imagine those cuttings would ...
1
vote
1answer
52 views

Possible reasons for coriander seedlings dying off

I had planted a grow-bag full of coriander seeds and they grew into plants with no problem. I planted some more seeds in another larger, wider pot, and after germination, a small clump of seedlings in ...
2
votes
0answers
25 views

How hot can soil get if daily temperatures persist above 100°F?

I am doing some research on ponderosa pines and climate change. I am currently trying to find (with no luck) how hot soil can get if subjected to direct daily sunlight with temperatures exceeding 100°...
1
vote
1answer
35 views

Soil condition for catus seedling

I have a cactus seedling (Pachycereus pringlei), it is one month old now (germinated end of August). During this time I kept the soil very moist and wet. My question is when do I switch to normal ...
1
vote
0answers
131 views

New leaves from mango seedling are drying up and dying off but the plant is still growing

I started some mango plants from seed and after a few weeks they're slowly growing. However, now that each plant has a new leaf or two, I've noticed that some of the newer leaves are drying up and ...
3
votes
1answer
45 views

Caring for noble fir seedlings (Christmas trees)

I am an amateur gardener turned Christmas tree grower. Before I cared for cacti (can't really underwater) and venus flytraps (can't overwater) and felt great that all my plants lived for many years. ...
3
votes
0answers
26 views

Starting shallot advice

OK, I have been attempting to get a shallot bed going the last couple years. I chose to go with seeds, but really have had little luck. If I start inside I have had little luck transplanting. I may ...
4
votes
1answer
34 views

Tips for raising a Ginkgo from a seed?

This will be my first post; hopefully I included enough information from the get-go. Not sure if I'm asking too much for one question, but I assume growing a plant may require a couple paragraphs at ...
4
votes
1answer
59 views

I have planted some seeds but they don't grow to a full plant, why is this?

I bought some seeds such as the following (pepper), but there are also seeds of other plants. I'll use this one as an example. In the back, there are instructions: It instructs to plant in a 0,5cm ...
2
votes
2answers
73 views

Watermelon plants not growing

I live in zone 3/4, I planted some Sugar Baby watermelons this year (first time!). I started them in my greenhouse and moved them outside around the time of the last frost since it was really warm out ...
3
votes
3answers
62 views

Oak Tree Seeding

A year and a half ago, during the last stages of autum, my five year old niece and I were going for a walk in our neighborhood. She began collecting acorns that had fallen on the ground and asked ...
4
votes
1answer
126 views

Are my poppy seedlings dying? How can I save them?

Are my poppy seedlings dying? I leave the plate filled with water everyday. How can I save them? (Even if it means ripping some off and leaving them more spaced out.)
5
votes
2answers
247 views

Cucumber cotyledons turn yellow and shrivel too soon

I am growing cucumbers in pots to transplant. Some of them are doing well. But on others the cotyledons turn yellow and shrivel before the true leaves get big enough to grow. The seedlings stay ...
5
votes
3answers
43 views

How to retrofit seed starting trays to prevent root circling

I grow plum trees from pits using seed starting trays: Unfortunately, I have a problem where the roots of the seedlings grow in circles around the bottom of the cavities of the trays. The circling ...
3
votes
2answers
107 views

Tree saplings in my lawn?

Parts of my lawn are full of these. I thought they were weeds when they were smaller and now they are looking like tree saplings. Is that what they are? Maple saplings? How do I get rid of them from ...
5
votes
2answers
490 views

Why are my snack peppers wilting?

Snack Peppers; I love these things, the kids eat them right in the garden while we work there. The seeds are harder to find than most peppers in local stores, and I refuse to pay $3.50 for a single ...
4
votes
2answers
171 views

Japanese Maple Seedlings Dying For No Apparent Reason

I'm trying to grow Japanese Maples from Seeds. I had over 100 germinate this year and now I think they're all dead. One the seedling reaches an inch plus, it puts out true Japanese maple leaves. After ...
5
votes
1answer
122 views

Does anyone know what these seedlings are?

This is an acorn that I've found in abundance is Rockford, Illinois, USA. I think it may be a red or black oak but I'm not sure. It has a very distinct look with the line showing separating the two ...
4
votes
1answer
89 views

What plant will grow from these seeds?

Last month, I found in my kitchen a bag of chia seeds intended for human consumption, but the expiration date was in 2017. Instead of throwing them away, I sprinkled some in several cells of my ...
2
votes
2answers
43 views

Fighting that damping off fungus

I am having a hard time finding anything that kills this. Some people say a normal fungicide will not kill them, and I can't find products made to kill it specifically like people are saying I should ...
1
vote
0answers
68 views

Broccoli and cabbage leaves are curling (seedlings)

This is my first year for growing anything and I am having some issues with my broccoli and cabbage seedlings. For the longest time (2 weeks) they have been doing fine but recently the leaves are ...
4
votes
1answer
66 views

Some tomato seeds have died… whats happening?

I have had some tomato seedlings growing in my little green house (or grow room) for about a week now. This morning I went down to check on everything (I check morning and night) and tonight I noticed ...
3
votes
1answer
98 views

Why are my tomato seedlings dying after applying ammonium sulfate?

Why are my tomato seedlings dying? They just germinated then after a week some are dying? I added compost and a little bit of ammonium sulphate in each plastic bags. They are not yet transplanted. I ...
3
votes
1answer
22 views

transplanting my seedlings.

I have started a couple different types of seeds, which include, tomatoes, celery, pepper, onion (walla walla), and some other things. I have no idea when to transplant these plants from my plug tray, ...
3
votes
1answer
94 views

Why is my pumpkin seedling's cotyledon twisted and whorled?

Two days after transplanting, my decorative pumpkin seedling's cotyledon became twisted and whorled. Why? What does it mean?
1
vote
1answer
42 views

What are these two intruders into Rudbeckia seedlings home?

I started black-eyed Susan (Rudbeckia hirta) seeds in a tray - you can recognize her seedlings by hairy true leaves. However, I noticed there is another type of seedlings of unknown origin, that looks ...
5
votes
1answer
748 views

What is this giant seedling?

I set up an experimental seed starting tray, but can' remember exactly what seed I put for some seedlings. One of them is a HUGE seedlings pictured in photos below. I just vaguely remember that it ...
2
votes
2answers
53 views

How many grow lights do I need for starting tomato seeds?

Should I just buy a 48" shop light? I have two 10 x 20 flats. I've never done seeds indoors. I have about 6 weeks until our last frost date, May 15 in Chicago. I already started the seeds on a heat ...
4
votes
1answer
66 views

Why do my seedlings need more and more water?

I started Echinacea angustifolia and Rudbeckia hirta seedlings recently. I do watering by spraying if I can see or touch almost dry soil in cells. In the begining, I sprayed the trays with water ...
7
votes
1answer
67 views

A seedling with three (instead of two) cotyledons

I started 44-cell tray of Echinacea angustifolia several weeks ago. I noticed the other day that a seedling in one of cells has three cotyledons: Is that normal? This is a cell with two "normal" ...
2
votes
1answer
102 views

Plastic glasses as containers for seedlings - yes or no?

Is it OK to repurpose plastic glasses as seedling containers for the mid-phase between initial development in trays, and final planting in the garden? (I am going to make holes with a cigarette at ...
2
votes
1answer
198 views

Are these small hairy leaves first true leaves of my rudbeckia seedlings?

Are these small hairy leaves first true leaves of these seedlings? The plant in question is Rudbeckia hirta.
5
votes
2answers
544 views

Is this night lamp setup helpful or harmful for seedlings?

If I keep the regular (so called warm white) night lamp during nights above my Echinacea angustifola and Rudbeckia hirta seedlings (like pictured in the photos), would it be helpful or harmful for ...
5
votes
2answers
1k views

What is this whitish feather on my Echinacea seedlings?

My multicell container with Echinacea seeds was covered with a transparent nylon cover for several days, and I just removed it, and spotted an unusual thing. Take a look at this white stuff in the ...
5
votes
3answers
101 views

Trying to grow Chillis with a LED Grow Lamp

I started with some chilli seeds of varying types planted in some Gro-Sure Seed & Cutting compost (https://www.gardenhealth.com/product/grosure-seed-cutting-compost). After a few weeks sitting on ...
2
votes
2answers
101 views

What to do with these black-eyed Susan seedlings?

I started black-eyed Susan seeds ten days ago: (I just sprinkled tiny seeds over grid-type container filled with "soil for flowers" from the supermarket) You can see multiple new plants in almost all ...
3
votes
1answer
41 views

Are these weeds or bougainvillea seedlings?

About six weeks ago, I threw a bunch of petals from my mom's bougainvillea plant, into this bucket of dirt and these started growing.
3
votes
1answer
63 views

Will this Cherry tomato sprout ever grow its first leaves?

I have planted three cherry tomato seeds. One has sprouted among them, but for the past two days its leaves are not emerging from the seeds. It’s the same as shown in the picture below. I'm also ...
3
votes
0answers
31 views

Lettuce - DLI recommendation day 1-14 with full spectrum led

Im looking for a recommendation of the DLI for lettuce in a hydro setup for the first 14 days using a full spectrum led i would figure it at 8 -12 mol/m2/day what do you think? greets
3
votes
1answer
44 views

I left Car. Reaper seedlings in the tray for 51 days, did I leave them in too long?

I left my carolina reapers in the starter tray for 51 days, the bottom of the stems are starting to get woody, and they have about 5 sets of true leaves and are still growing more. They are ~2.5 ...
3
votes
1answer
77 views

Avocado stem stops after 1- 2 cm

I have this avocado pit that I have been growing for 2-3 months. It had a big strong root, and then a strong stem came out. After about 1 cm it stopped and died. Then another, thinner, stem came out, ...
7
votes
2answers
938 views

Planting too many seeds in small pot

What will happen if i keep my sweet basil here?
7
votes
2answers
116 views

How common are double dicotyledons?

I'm growing some tomatoes from seed, and one of them has two pairs of cotyledons. The stem splits just before the leaves start with a pair of cotyledons on each side. The leaves are smaller than its ...
15
votes
2answers
2k views

What are the chances to get an edible apple from a tree grown from seed?

I am growing a few good apple trees in my roof garden, in pots. I love growing the trees, and of course love the fruit. Since I am in a warm climate, I grow appropriate apple cultivars which are ...
2
votes
1answer
298 views

Carnation true leaves are not growing

I have planted Carnation (Dianthus caryophyllus) seeds indoors in a seed tray. The seeds germinated 5 days ago and had to do 2 days without grow lights since they were not installed till then. Once ...