Pin Oak (quercus palustris)
Seed Prices -New 2019 crop now available
10 grams (approx 7 seeds) £1.25
25 grams (approx 18 seeds) £1.75
50 grams (approx 36 seeds) £2.75
100 grams (approx 71 seeds) £4.50
250 grams (approx 177 seeds) £9.50
500 grams (approx 354 seeds) £17.00
1000 grams (approx 708 seeds) £30.00
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The Pin Oak is native to North America, mainly in the eastern United States growing to 18-22m (60-70 ft) tall. It is commonly planted as an ornamental or shade tree and because of its rapid growth, large symmetrical crown, and scarlet autumn colouring.
It is naturally a wetland tree and can tolerate seasonal winter flooding. Unlike other oaks it develops a shallow, fibrous root system. It is best suited to heavy acidic soils
Pin Oak shares a similar characteristic of some beeches and hornbeam's and can retain their leaves through the
winter months. Young trees under 6m (20 ft) will often be covered with leaves year-round, though the leaves die in the autumn they remain attached to the shoots until the new leaves appear in the spring.
The fibrous root system makes it easier to transplant than other oak species with high rates of survival and rapid establishment. It is tolerant of strong winds but not maritime exposure and can tolerate atmospheric pollution.
It is generally quite short lived for an oak usually only lasting 90 to 120 years but can bear acorns on trees as young as 15 years. I think that it is a fine and handsome tree that deserves to be more widely planted.
Germination and after care information included with every order.
Germination, Sowing and After Care Information for
Pin Oak/Swamp Spanish Oak (quercus palustris)
They can be sown outside in the garden usually during February or March in soil that has been well cultivated and is free from weeds. Acorns can be broadcast over the soil or sown in drills and covered with a couple of centimeters of fine soil and will need protecting from mice, squirrels and pigeons etc. and intense frost.
For seed that will be sown under glass the acorns should be mixed with a 50/50 blend of moist peat/compost and sharp sand -just enough to separate the seeds from each other. Put them in a plastic bag (freezer bags are ideal) and place the loosely tied bag in a fridge for around 8 weeks. If they show signs of germination sow them immediately. After this period of pre-treatment they can be sown in good quality potting compost in deep containers (at least 15 cm deep), covering each acorn with a couple of centimeters of soil.
As soon as these trees germinate they produce a strong taproot, planting in shallow containers will cause severe root deformation, if the taproot ion a young plant is cut at about 10/12 cm below soil level it will produce a mass of fibrous roots which will make them more manageable for container growing. They can be started off under protection or indoors but should really be placed outside from the early summer. If you need to store your acorns before pre-treatment, mix them with slightly moist compost or peat and keep them in a cool place such as an unheated frost free outbuilding or in the fridge.
Initial growth is very rapid and within a few weeks from germination the seedlings will be between 10 and 15 cm high. The trees will then rest for a few weeks before developing a terminal bud that will break into rapid new growth if the conditions are right. This usually brings height growth to 20 to 40 cm.
In warm locations and in favourable years the seedlings can even have a third growing phase of rapid growth before setting a resting winter bud. To encourage maximum growth ensure that the trees are never stressed because of a lack of water and that they are well nourished and grown in a warm, sunny position.
Trees should be planted in their permanent position as soon as is practical, usually at the end of the end of the second growing season. Allowing them to be grown in too shallow a container for any length of time can cause permanent root deformities that can lead to the failure of the tree once it grows to a large stature.
Pin Oak is fast growing and will become very large and responds poorly to attempts to control its size by pruning.