Category Archives: Seeds

Seed Collecting – October 6th

seeds-paperbag-600Collecting seeds in the fall is the easy way to start hundreds of plants for no cost. If you figure that many plants can cost $10.00, you could save hundreds and thousands of dollars by collecting and planting your own seed.

I’m opening up my gardens to anyone who wants to collect seed.
Oct. 6th – Saturday – 10 a.m.
9016 Robyn Rd – 63126

Bring: paper lunch bags, black marker, pruning shears or scissors.

Here are seeds available in my yard at this time of the year.

  • Blazing Star – fall
  • Bronze Fennel – fall/spring
  • Cleome – Spider Flower – fall/spring
  • Echinacea – purple cone flower – fall
  • Gomphrena – spring
  • Helenium – fall/spring
  • Ironweed – fall
  • Lantana – spring
  • Marigold – spring
  • Milkweed – asclepias incarnata – fall
  • Partridge Pea – fall
  • Rudbeckia – black eyed susan – fall
  • Rue – fall/spring
  • Salvia purple – perennial – fall
  • Salvia – red – annual – fall/spring
  • Skullcap – fall
  • Verbena bonareinsis – spring
  • Verbena hastata – fall
  • Veronica – veronica – fall
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SLC Grower’s Mix

SLC-Growers-MIx-600After watching a couple of years of Monty Don on “Gardeners’ World,” one of the differences I noticed was he doesn’t use peat moss in the U.K. He mainly uses a lot of compost, perlite and grit.  I’ve also never seen him use fertilizer other than compost which he makes himself.

You would be hard pressed to find this mixture in any nursery or big box store.

What I have found is a mix which seems similar to what Monty Don uses.

SLC Grower’s Mix has a combination of pine bark fines, compost and PBH rice hulls, although they wouldn’t tell me the exact percentages.

When I talked to SLC they did indicate that they would recommend using Osmocote if I was planning to grow from small size to large size in a pot. He recommended using a medium dosage.  They do include a small starter nutrition in the mix and a micro-nutrient charge.

The product will be a bit drier since it drains so well. You may have to water more often.

I’m going to be doing some tests with this product versus my standard BX ProMix.  The SLC mix is only $6 per 2 cu. ft. bag.

You would obviously be better off buying the mix in bulk, if you have a place to dump it.

The one odd thing about this mix is that it is in bags which say Cotton Blossom Compost.

cotton-blossom-compost-400

 

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Seed Test Results

Here are the results of my seed tests – they will be updated daily.

Seeds From My Garden

  • Agastache regular – 6 days
  • Agastache  Pink Rapp – 5 days
  • Blazing Star spicata
  • Bronze Fennel – 4 days
  • Cleome
  • Coreopsis lance leaf – 8 days 
  • Coreopsis Plains – 4 days – 100%
  • Dianthus barbatus – 6 days
  • Echinacea – CS
  • Echinacea – no CS
  • Gaillardia small – 5 days
  • Globe Amaranth pink – 3 days – 100%
  • Gomphrena Fireworks –
  • Helenium amarum – 4 days – 100%
  • Maltese Cross – 7 days
  • Marigold –
  • Partridge Pea – 
  • Rue –
  • Salvia pink – 4 days
  • Salvia purple – 6 days
  • Tropical milkweed – 6 days
  • Verbena hastata –
  • Verbena bonareinsis
  • Zinnia angustifolia – 3 days
  • Zinnia profusion pink –

Seeds I bought for 2018

  • Ajuga reptans –
  • Alyssum Royal Carpet – 3 days
  • Creeping Thyme Magic Carpet – 6 days
  • Creeping Thyme Mother of Thyme – 4 days
  • Pussytoes Red – 4 days
  • Rock Cress Cascading
  • Sedum acre – 4 days
  • Sedum Dragons Blood – 3 days
  • Sedum oreganum – 3 days
  • Snow in Summer – 6 days
  • Veronica repens – 6 days

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Seed Testing in January

seed-testing-bags-600If you have leftover seeds from last year or seeds that you collected in the fall, now is a good time to test the seeds for viability.

 

 

seed-testing-800

I prefer to test the seeds through my standard seed starting process.

  • I use the 36 per tray plastic cells in a 1020 tray.
  • I put this tray in a heavy-duty plastic tray.
  • I use my preferred potting mix as a base – BX Pro-Mix with some Osmocote.
  • Make sure the mix is well watered before you add the seeds.
  • I put 3 or 4 seeds on top of the mix.
  • I top the seeds with a light layer of vermiculite.
  • I spray the vermiculite with water.
  • I label each cell with the date, seed name and number of seeds. I use vinyl blinds that I have taken down. These are easy to cut and label with a pencil.
  • I also put in about 1/8 inch of water in the bottom of the tray in case the mix needs to absorb some water.
  • I cover the tray with a plastic clear top.
  • I lower my shop lights to within 1/2 inch of the plastic top.
  • I keep the lights on 24/7 to keep it all warm.

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Cold Stratification List

seeds-cold-stratification-01-400

Note – Shaw Nature Reserve uses 3 months Cold Stratification for most natives.

Plant Cold Stratification
Agastache 30 days – Surface
Asclepias incarnata – Swamp Milkweed 30 days
Asclepias tuberosa – Butterfly Weed 30 days
Blazing Star – Liatris 60 days
Bronze Fennel Not needed
Cleome Not needed
Coreopsis lanceleaf 30 days
Coreopsis plains Not needed
Dianthus barbatus Not needed
Echinacea 0 – 30 days ????
French Hollyhock – Malva sylvestris Not needed
Gaillardia Not needed – press into soil
Gomphrena – globe amaranth Not needed
Helenium amarum – Sneezeweed Not needed – surface sow tiny seeds
Lobelia cardinalis 60 days – Surface Sow
Maltese Cross Not needed – do not cover????
Marigold Not needed
Rudbeckia 60 days
Rue Not needed
Salvia – purple perennial Not needed???? – needs light to germinate?????
Verbena bonareinsis Not needed
Verbena hastata – Vervain 30 days – tiny seeds
Zinnia Not needed

 

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Time to Plant Seeds

seeds-in-the-fall-600

If you haven’t already, it’s now time to get those native seeds into the soil.

As you can see in the picture, I clean out the area, put in the seeds and then cover them with potting soil. I use a plastic lawn edging to keep the seeds in place and also make it easier to know in the spring where the new plants are.

I also mark the seeds with stakes to know for sure what is coming up in the spring.

This technique is an easy way to grow your own plants for your own garden or to share with others.


Option #2 – 1020 Daisy Trays

1020-tray-600

Here is another option I am trying this year.
I am using what is called a 1020 Daisy Tray. Sometimes you can get them for free when you buy a flat of plants, but I bought some from Greenhouse Megastore.

Here’s what they look like below when they are finished.
Theoretically, I could either just let the seeds germinate in the trays over the winter, or I could try bringing in the whole tray inside during March to let them get a head start germinating inside.

1020-trays-fall-seeds-600

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Planting Seeds in the Fall

While most annual seeds are planted in the spring, many native seeds need to be planted outside in the late fall. They need what is called cold-stratification to break the seeds out of their dormancy. While this can be done artificially, it’s easiest for the home gardener to just do it in an outside garden.

Here’s a technique that I use with good results. I would normally suggest planting the seeds around Thanksgiving. If it is still warm, wait until things cool down.

starting-seeds-outside-01

  • Scrape off the top half inch of soil and mulch. You want to get down to the soil level. Set that material off to the side – we won’t use it. If you have weeds in the area, dig them out and put them in your compost.
  • You then want to define your seed area so it will be easy to identify in the spring. You can use anything you want – hula hoop, wood, bricks, etc.
  • I used a product called Terrace Board which is usually used as a lawn/garden edging. I cut it into twenty foot lengths and then drilled a hole into both ends and used a bolt to connect the overlapping ends. You will probably also need to buy plastic pegs to keep the board in place.
  • Another option if you have lots of weeds and/or grass is to lay a couple layers of newspaper to smother the old growth and fill the area with good potting soil.
  • I usually also add a half inch layer of compost or potting soil over the soil. We have clay soil in my location and it is not the ideal germinating medium.
  • Put in your seeds, cover with another 1/4 inch of potting soil/compost and then water.
  • Label the area so you know what seeds you planted.
  • The plants you see are Asclepias incarnata – Swamp Milkweed.
  • The advantage of this method is that you know that the plants coming up are the ones which are on the label.

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