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propagation

little miracles

On 20, Feb 2017 | No Comments | In advice, plants, propagation | By All Year Garden

The amount of time I spend contemplating the fresh seedlings in the starting tray would probably irritate an action oriented person. I would likely have some difficulty explaining to that person the wonderment of seeing the first set of leaves emerge, or the excitement of watching the tiny shoots develop from delicate strands barely hanging on to life to healthy plants ready to withstand whatever circumstances bring. Read more…

how to create rose hybrids

The procedure for creating new roses is lengthy and the success rate is very low, but if you are a really passionate about roses and you must make your own, it goes something like this.

You pick the two roses you want to combine, they have to be almost open, but not fully. With great care and making sure not to lose any of the pollen, snip the stamens from the first rose and store them in a bag. Read more…

how to grow pinks

Cottage pinks are easy to grow perennials that enjoy sunny locations but will do moderately well in part shade. They don’t like wet feet, make sure to plant them in a sandy and slightly alkaline soils that drains well.

Don’t mulch too close around their roots and give them plenty of breathing room, otherwise they are susceptible to stem rot. A spacing of 12 to 18 inches is appropriate. Read more…

rose propagation, rose pruning

The most common method of rose propagation is through stem cuttings. Cut a sturdy, still green stem around six inches long, making sure it has at least five leaves and preferably a spent flower. Bruise the end by crushing it or splitting it lengthwise, dip it in rooting hormone, which can be found at the plant nursery, and stick it in the ground in a location protected from excessive heat or draught. Place a glass jar over it and press it firmly into the soil, making sure no parts of the cutting touch the glass, so that condensation doesn’t encourage mold. Read more…

how to grow plants from seed

On 12, Apr 2012 | One Comment | In advice, propagation | By All Year Garden

Aren’t they supposed to do this on their own? Yes, they are, but you get much better quality plants and a whole lot more of them if you follow these tips.

Start at the end of February, beginning of March. Get a few seed starting kits: they are arrays of little growing pods (36, 72 or 144) with transparent lids. Read more…

plant propagation

On 16, May 2011 | No Comments | In propagation | By All Year Garden

Plant propagation is a cost free or at least a very inexpensive way to grow your plant stock. It only takes a few tools that you probably already have: good secateurs, a shovel, planting medium, rooting hormone and a few pots.

Seeds

The easiest way to grow your plant stock is by using seeds harvested from plants you already have in the garden. Some plants, like lettuce and celery, will only germinate if exposed to sunlight; others, like phlox and alliums, only if they are completely covered.

Most plants will benefit from being started indoors six to eight weeks before the last frost. There are a few that either do not like being transplanted or are hardy enough to take a light frost. Those plants are better off being planted directly outdoors. A few examples: peas, carrots, corn, beans, nasturtiums, morning glory, cucumbers.

Most perennials benefit from being sown directly outdoors at the end of summer. This gives the plants the chance to experience the cold cycle they have adapted to and makes them emerge stronger in their own time in spring.

Hard seeds like nasturtiums, morning glory and four-o’clocks will germinate faster if soaked in warm water for 12 hours prior to planting.

When: Plant annuals in spring and perennials and biennials at the end of summer, when the heat died down a bit.

Division

Another popular way to increase your garden stock is by dividing mature plants. Most herbaceous perennials really need dividing in order to keep blooming and healthy. Among those, a few examples: heuchera, daylilies, pampas grasses.

Other plants, like daisies and bee balms will quickly spread if left to their own accord. Dividing them is a good way to control their growth and fill up bare spots in your garden.

To divide the plant you can either dig it out completely and break the root ball into smaller parts or slice part of a clump with a shovel. If you can do the latter, the advantage is that the roots of the mother plant will remain undisturbed.

When: Divide spring blooming plants in the fall and fall blooming plants in spring.

Rhizomatous plants

Among these: bearded irises, peonies, lily-of-the-valley, mint.

For small rhizomes, just pull out of the dirt and replant somewhere else. For larger rhizomes, dig the plant out at the end of summer after it finished blooming and cut up the root in 2-4 inch sections with leaf growth at one end.

When: End of summer or fall, after they have finished their vegetative cycle.

Layering

This works great with ground covers, strawberries, raspberries, and spider plant. Take a runner and tie it down to the ground with a pin. After the plant develops roots you can cut it loose from the mother plant and move it someplace else.

When: whenever they decide to grow runners.

Cuttings

Most woody plants can be propagated like this, especially roses, for which this is the basic method of propagation. Other plants to be propagated by cuttings: butterfly bush, weigela, pelargonium, fuchsia, delphinium, forsythia, chrysanthemums, hydrangeas, African violets.

There are four basic types of cuttings: tip cuttings (soft, green), stem cuttings (woody), leaf cuttings (leaf and petiole) and root cuttings.

For stem and tip cuttings, a minimum 3 inch length will ensure the viability of the plant. Wounding the cutting (making a longitudinal cut or crushing the bottom) will stimulate the plant to grow new roots.

Many plants, like mint, will grow roots if placed in water. Other plants, like African violets and hydrangeas, will be happy to root if you stick a leaf with a long petiole in the dirt. For plants with large leaves, like hydrangea, it helps to cut off about half of the leaf to lessen the strain on the developing root system that feeds it.

If you have rooting hormone, I strongly recommend it.

When: For  fall blooming perennials and annuals, start cuttings when the danger of frost has passed in spring. For spring blooming perennials, start the cuttings in the fall and protect them under cloches (a glass jar would work just fine) over winter. It is very advantageous to the plant to go through a cold season in its natural surroundings, it gives it a stronger root system. This is especially true for roses.

Bulbs, corms and tubers

Some bulbs, like lilies, will start spreading out in a scaly pattern. Each scale with roots can be separated to start a new plant.

Onions can be vertically chopped and divided. For hyacinths there is a method called scooping: cut the roots off a bulb and scoop out the central part right underneath them to expose the bulb layers. Place the bulb upside down half buried in a tray full of wet sand. Place the tray in a dark warm location. In 12-14 weeks bulblets will start forming on top of the large bulb. Plant the bulb upside down with the bulblets right below the surface. Let the plant go through its vegetative cycle. The bulbs can be lifted and separated in the fall.

When dividing tubers, make sure to have at least one viable “eye” on each section.

When: In the fall, after the plants go dormant.

Dropping and stooling

Dropping consists of pushing down and covering most of the plant stems with compost or good quality dirt, and wait for the plant stems to develop individual roots. The newly rooted plants can then be separated and replanted. This works for heathers and rhododendrons.

For the stooling method mound up dirt high around the bottom of the plant, to give the stems an opportunity to grow roots. A few examples of plants for which this method works: lilacs, willows and dogwoods.

When: Drop and stool in spring, divide and cut in the fall.

Please keep in mind that some plants can be successfully propagated through several of these methods.

Here are some good resources for learning more about plant propagation:

American Horticultural Society Plant Propagation: The Fully Illustrated Plant-by-Plant Manual of Practical Techniques – Alan Toogood

Propagation Basics: Tools Techniques Timing – Steven Bradley

Secrets of Plant Propagation: Starting Your Own Flowers, Vegetables, Fruits, Berries, Shrubs, Trees, and Houseplants – Lewis Hill

rose propagation

On 08, Mar 2011 | No Comments | In propagation | By All Year Garden

Here is one of the cuttings I planted last fall. It seems to have sprung pretty healthy roots. Notice the bottom growth and the large bud at the top. Those are pretty sure signs that this rose actually has roots. I can’t tell you how many times I watched green shoots like this stay green for months with no actual root development happening.

Starting the roses directly outside offers many advantages:

1. They grow a healthier root system in their permanent location and they are not subjected to the stress of relocation. If a rose found a specific soil favorable enough to sprout roots, it is much more likely that it will thrive in that location when fully grown.

2. They will be less subject to wilt because they have adapted slowly to the weather changes.

3. They have  full sun exposure, which will significantly benefit them throughout their development.

4. You don’t have a sea of potted sticks with plastic covers on every well lit window sill for the entire winter.

5. They don’t mold.

6. They experience the winter dormancy cycle, which is natural for roses and therefore beneficial.

That being said, a few more pointers about new roses.

Don’t prune them the first year. Some people advise removing all the blooms to allow the plant to develop a strong branch, leaf and root structure and not expand energy for flowers. I never had the heart to do it, but I can believe this is good advice.

Give them some extra care the first year, make sure they have enough sunlight and water to stay healthy. Generally speaking own-root roses tend to be healthier and stronger than the grafted ones, but take a little longer to develop. Make sure that they don’t have fast growing annuals towering over them and taking up all the resources. Once they are two or three years old they are tall enough and this ceases to be a problem.

Stop worrying about how hard it is to grow roses, because it is not true. Roses are shrubs and require very little care once established. Of course, some varieties are sturdier than others.

 

 

buy heirloom seeds

On 01, Feb 2011 | 21 Comments | In propagation | By All Year Garden

Yes, I know that January is not particularly a gardener’s dream, but it is a special and exciting opportunity for renewal. Every year green thumbs afflicted by cabin fever search hopefully through plant and seed nursery catalogs to find the next beautiful flower or high-yield veggie to add to their garden.

Whether their patch of dirt is farm sized or just a few clay pots and in a little sunny spot on a balcony, everyone who ever caught the gardening bug is always looking for the next plant to enjoy, harvest, or, let’s face it, show off.

If you are into seed saving, it is time to bring in that seed box of yours and review the contents. Yes, they will all sprout and grow into beautiful plants.

For those who want to add a little diversity to the garden, try new plants or enhance their seed saver collection for the future, there is nothing like heirloom and non-hybridized seeds.

Most of the plants these seeds come from have been thriving in your area for decades, even centuries. They are beautifully reminiscent of grandparents’ gardens, very flavorful if they are vegetables, not prone to disease and most importantly, will come true from seed year after year.

I’m sure everybody has their favorites when it comes to picking a nursery to buy seeds from, but I will share mine:

Monticello Catalog of Plants and Seeds – every plant I started from their seeds was beyond expectation, they come out beautiful, vigorous, and will thrive anywhere. They have heirloom and non-hybridized seeds. Case in point – Scarlet Runner Beans and Calendula.

Heirloom Seeds – They have a wonderful variety of certified organic vegetable seeds. At this time, if you buy a Victory Garden they will donate $10 to the Red Cross. Please check out the details on their site.

Baker Creek Heirloom Seeds – They offer only open pollinated seeds.

Spring Hill Nurseries – I have been buying plants and seeds from them for a long time, and I was very happy with them. See their “Wonder of Staffa” blue asters, for instance.

Click here to visit BloomingBulb.com – Another grower from whom I bought plants for years, very reliable. They specialize in bulbs, I think probably two thirds of the bulbs in my garden came from their nursery.

save tomato seeds

On 22, Nov 2010 | 4 Comments | In propagation | By All Year Garden

Yes, this is a spruced up picture of mold. In order to save your favorite tomato seeds for next year, you need to remove the gelatinous coating that keeps them from germinating inside the tomato fruit.

In nature, the tomato will eventually fall to the ground and for lack of a better word, rot. While it is turning to mush on the ground, the pulp and juices ferment and break down the gel around the seeds, allowing them to germinate.

Since we normally pick the tomatoes from the vine before this happens, we need to mimic the process to obtain the fertile seeds ready for germination.

Just think of this as a science experiment dedicated to the fermentation process. It kind of smells, but it is not too bad.

tseeds1-cropChoose your favorite healthy tomatoes, the open pollinated variety (the other ones won’t come true from seed). Label the jars the pulp is going in with the type of tomato and the date. tseeds2-cropSlice the tomatoes across the equator. It makes it easier to scoop up the pulp. tseeds3-cropScoop up the pulp inside the… tseeds4-crop…corresponding labeled jar.
tseeds5-cropCover the seeds and pulp with half a cup of water. tseeds6-cropCover the jar with a clean coffee filter and place in a warm place to ferment. It doesn’t smell good, so don’t place it somewhere where the smell would bother you. tseeds8-cropAfter a few days (3 or more) the mixture will ferment and start developing mold at the surface. This means the gel that coats the seeds has broken down and they can be cleaned up and dried. tseeds9-cropThoroughly remove all mold, fermented pulp and sterile seeds by adding water to the jar and pouring out everything that floats on top. After a few rinses, the water will run clear and the healthy and fertile seeds will sink to the bottom. Strain them, pour them on a paper towel and pat them dry, then spread them out to dry on a paper plate, marked with the type of tomato and the date. After they dry, place them in labeled paper bags for spring.

don’t forget the bulbs!

On 01, Nov 2010 | One Comment | In propagation | By All Year Garden

Don’t forget to plant your spring bulbs before the dirt freezes. Use only healthy bulbs that are not soft or showing signs of mold, and make sure to work plenty of bone meal or bulb fertilizer into the soil, to give your plants a good start for next season.

A few comments about planting bulbs:

– they don’t like wet feet,  a well draining soil will help them thrive; if you have heavy clay soil, loosen it up a little by adding sand.

– do not plant them too shallow (follow the instructions on the packet but a good rule of thumb is to plant twice deeper than the height of the bulb), and use group plantings for better color effect.

– if you have a small garden consider planting several overlapping layers of bulbs of different sizes and blooming times.