Showing posts with label cuttings. Show all posts
Showing posts with label cuttings. Show all posts

19/01/2024

Propagate plants by cuttings

 
Cutting propagation is one of the most popular ways of plant propagation utilised globally. A cutting is a section of a mother plant that has been cut off and from which a new plant will grow.

 Plant propagation by woody cuttings is a simple and easy way of propagation. Annual shoots are used to make woody cuttings. The cutting period varies for each plant and must be properly adhered to. Not just berry bushes, but also most beautiful plants such as physocarp, and others, are propagated in this manner. Blackcurrant cuttings, for example, are produced after the leaves fall and continue until the buds mature in the spring. However, blackcurrant cuttings taken in late October yield the greatest results, as blackcurrants might be frosty near the end of winter. In the first decade of September, currant and gooseberry cuttings are made.


Cuttings range from 12 to 15 cm. Currant cuttings must not have the top bud removed, but blackcurrant cuttings must. The lowest portion of the cuts should be cut 2-3 mm below the bud, as obliquely as possible. The prepared cuttings can be cut in the bed immediately (with a 15-18 cm layer of peat following frost) or carefully buried in the overwintering location. Cuttings can be kept cold (0 to +20 C) in a basement buried in peat or in the field. When frost begins to fall, cover the burial location with a 15-18 cm layer of peat. Cuttings are planted upright in light, extensively tilled soil, whereas they are planted horizontally in heavier, wetter, and shallower soil.

Cut a 10-15 cm long plug 2-3 mm below the node and break off a piece of wood from a biennial branch to leave a trace at the end (this will stimulate the growth process). Cuttings that are too long must be trimmed by cutting off the tip so that they do not come out when implanted in the substrate. When the air temperature is over +10 °C, the optimal time for propagation is mid-March to early April.

Woody cuttings can be used to produce berry plants such as currants, blackcurrants, and golden currants, as well as decorative deciduous shrubs such as spireas, hydrangeas, willows, philadelphus. Trees can also take root (mulberry, poplar, and even lilac).


Aunts root nicely among the conifers. Junipers may be propagated as well. More careful gardeners have discovered how to root spruces and Douglas firs.


Conifer cuttings are made by severing the branch and snapping (rather than cutting) the shoots. At the bottom of the scion, a so-called foot - a piece of bark - develops.


- The soil around the cuttings is compressed, enveloping the trigger section and the buds in the soil.


- Professionals employ growth stimulants for cuttings, but amateur gardeners don't need them.


Unheated greenhouse


Unheated greenhouses that are not very hot right now and are still vacant are ideal for rooting cuttings. Digging in boxes rather than directly in the soil is preferable. In the summer, the young plants can be removed from the greenhouse. Later transplantation will cause less disruption to the root system.


Prepare the boxes for bursting by filling them with substrate. Garden soil is also appropriate since woody cuttings are resilient.

Moisture levels in all cuttings must be closely checked. The soil must not dry out, but neither should it become excessively wet.


- It is beneficial to pinch the cuttings tightly since this increases the likelihood of one developing.

Varieties of thuja are propagated vegetatively by cuttings. The best time to cut cuttings is early spring (before budbreak) or late June, early July, when the young shoots are no longer raw but are mature.

The shoots are first cut and then separated into cuts by ripping, leaving a sliver of biennial wood at the root. Cuttings should be 8-15 cm in length. Make them neither too short nor too long, or they will adhere to the substrate and root poorly. The cuts must be done at an oblique angle and roughly 1 cm deep. The cuttings can be bathed in Schultz Garden growth booster for enhanced rooted, although conifers root well without it. In the spring and summer, rooting can be done in a greenhouse on a raised bed or in a bed in the shade of a shrub in a 1:1 mixture of peat and sand or vermiculite. 





07/01/2024

Growing dahlias for cutting inflorescences

 




Dahlias are one of the most popular cut flowers because they produce beautiful and long-lasting inflorescences in a wide range of forms, sizes, and colours. Growing dahlias for cutting, on the other hand, necessitates great care and attention because to their sensitivity to cold, pests, and diseases. We'll walk you through the process of cultivating dahlias for cutting inflorescences, from selecting the correct types to planting and caring for them to harvesting and storing them.



Important takeaways


- Dahlias are classified into 14 groups based on the shape and size of their inflorescences, which range in diameter from 5 cm to 30 cm.

- Dahlias may be produced from tubers or seeds, although tubers produce bigger and more diversified inflorescences.

- Dahlias require a sunny, well-drained position, rich, wet soil, consistent watering and feeding, and protection from frost, snails, and aphids.

- Dahlias should be cut when the inflorescences are fully open, ideally in the morning or evening, and immediately placed in a bucket of water.

Dahlias can be kept in a cold, dark spot for up to a week, or dried for longer storage.





Dahlias are classified into 14 groups based on the shape and size of their inflorescences, which range in diameter from 5 cm to 30 cm. Some of the most common cutting groups are:

**Decorative dahlias**: These feature big, flat petals in the shape of a ball or oval. They are available in a variety of colours and bicolbi-coloursors and are great for adding a splash of colour to bouquets and centrepieces. 'Café au Lait,' 'Thomas Edison,' and 'Arabian Night' are a few examples.

**Cactus and semi-cactus dahlias**: These feature long, pointed petals that curve backwards and forwards, giving them a spiky or star-like look. They are highly visible and give texture and contrast to flower arrangements. 'Chat Noir,' 'Nuit d'Été,' and 'Yellow' are a few instances.

**Ball and pompon dahlias** feature petite, spherical inflorescences that look like pompoms or balls. They are quite consistent and clean, and they are ideal for adding colour and filling gaps in bouquets and arrangements. 'Cornel,' 'Little Robert,' and 'Willo's Violet' are a few examples.

**Anemone-flowered dahlias**: These feature a tubular disc in the centre surrounded by one or more rows of flat ray florets. They have a delicate and whimsical appearance and are ideal for achieving a romantic and feminine impression. 'Totally Tangerine,' 'Blue Bayou,' and 'Honka' are a few examples.

 **Single-flowered dahlias** contain a single row of flat ray florets around a centre disc. They are simple and attractive, and they attract bees and butterflies. 'Bishop of Llandaff' is one example.



The table below summarizes the main characteristics of each group:

GroupInflorescence sizeInflorescence shapePetal shapePetal arrangement
Decorative10-30 cmBall or ovalFlatRegular
Cactus and semi-cactus10-30 cmSpiky or star-likePointedCurved
Ball and pompon5-10 cmSphericalRoundRegular
Anemone-flowered5-15 cmDisc and rayTubular and flatIrregular
Single-flowered5-15 cmDisc and rayFlatRegular





Dahlia plantation and care


Dahlias may be produced from tubers or seeds, with tubers producing bigger and more diversified inflorescences. Tubers are available at nurseries and online retailers, and should be planted in the spring, after the last frost, in a sunny, well-drained position. The soil should be rich and wet but not soggy, and it should be supplemented with organic materials like compost or manure. Depending on the size of the variety, the tubers should be planted 10-15 cm deep and 60-90 cm apart. To support the plant as it grows, attach a stake close to each tuber.





Dahlias require consistent watering and feeding throughout the growth season, especially during hot, dry spells. Every two weeks, a balanced fertiliser, such as 10-10-10, can be used, or a slow-release fertiliser can be incorporated into the soil at planting time. Mulching is also beneficial to dahlias since it helps to retain moisture, control weeds, and protect the tubers from cold. Dahlias should be pruned when they reach a height of around 30 cm to stimulate branching and additional inflorescences. Deadheading, or the removal of spent inflorescences, encourages continual flowering and avoids seed production.

Dahlias are vulnerable to cold, snails, and aphids, all of which can harm the plants and inflorescences. When the temperature falls below 5°C, cover the plants with a frost cloth or a covering of straw or leaves to protect them from frost. Slugs can be deterred by placing a barrier of crushed eggshells, diatomaceous earth, or copper tape around the plants, or by using slug bait. A powerful spray of water, a soap solution, or a natural predator such as ladybirds can be used to control aphids.