Monday, February 23, 2015

Starting Native Plants From Seed Indoors

The icy grip of February is still upon us and spring seems very far away.  You're probably itching to open up your seed packs and start those tomatoes or peppers but it might be a bit early.

There are seeds that can be started right now however.


Assortment of Carolinian seeds.


Seeds from most annual plants can be sown in spring and will grow no problem but many native plants seeds start off dormant and require a period of stratification to break this dormancy before the seed can grow.


Different seeds require different types of stratification and it's sometimes a matter of trial and error before you can determine which stratification method will work.  Mimicking the natural cycle of a seed in its native environment will usually do the trick; and most native seeds will have documented stratification info somewhere.

The most common type of stratification required is where the seed is moist and cool for a period of time but sometimes a warm moist period or combinations of the two may be needed as well.

Stratification can be done naturally by planting the seed outside in the fall and letting the seeds go through their natural cycle to break the dormancy or it can be mimicked indoors.  This method is probably the simplest and least labour intensive.


Stratifying indoors can be done using a variety of methods but one method that is quite successful is the 'baggie method'.

Nodding onion ready for the fridge.

The baggie method involves using a seal-able plastic bag and moist coffee filters/paper towels/cotton balls.  Cut the coffee filter in half an fold in half a couple times.  Dip the coffee filter in water and then squeeze out the excess water until the filter is damp but not soaking wet.  Open up the coffee filter and place your seeds inside then close the filter. Place the filter inside the bag and seal it up.  Label your bag with the name of the plant and the stratification details. (ie. date put into fridge and date to take out of fridge).


If the seeds require cold stratification place them in the fridge for the prescribed amount of time.  Its a good idea to periodically check your seeds just in case they have germinated a bit early.

Container of seeds being stratified in the fridge.


Some seeds will require only a few weeks in the fridge whereas others may require months.  It is a good idea to plan ahead when to start stratification so you can time putting seedlings outdoors in good weather.


These pawpaw seeds require 100 days cold stratification.




Once you have noticed your seeds germinating it is time to plant them into soil.  Tweezers are quite handy for picking up the germinated seeds.  Plant into seed starting mix and place in a sunny location until they are large enough to plant outdoors in spring.

Happy growing!





Saturday, February 7, 2015

FOOD FOREST MEDICINE Monograph #7: Winter Green



Common Name:  

Wintergreen

Latin Name: Gaultheria procumbens




Brief Description:

Gaultheria procumbens is an evergreen shrub growing to 0.2 m (0ft 8in) by 1 m (3ft 3in) at a medium rate.
It is hardy to zone 4. It is in flower from Jul to August, and the seeds ripen from Oct to December. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects. The plant is self-fertile.

Suitable for: light (sandy) and medium (loamy) soils and can grow in nutritionally poor soil. Suitable pH: acid and neutral soils and can grow in very acid soils.
It can grow in full shade (deep woodland) or semi-shade (light woodland). It prefers dry or moist soil and can tolerate drought.

Parts Used/Edible Uses:   

Edible Parts: Fruit; Leaves.
 
Edible Uses: Condiment; Tea.
 
Fruit - raw or cooked. It has a very strong spicy taste. Best after a frost, the fruit hangs onto the plant until spring if it is not eaten by birds etc. The fruits can also be used in pies, or made into jams etc. The fruit is up to 15mm in diameter.  A stronger tea can be made by first fermenting the bright red leaves. 'Oil of wintergreen' can be distilled from this plant. It is used to flavour beer, sweets, chewing gum etc.

Medicinal Uses:

Analgesic;  Anti-inflammatory;  Anti-rheumatic;  Aromatic;  Astringent
Carminative; Diuretic;   Stimulant;  Tonic.

Other Uses: Essential.

An essential oil is obtained from the leaves by steam distillation. In order to obtain the oil, the leaves need to be steeped for 12 - 24 hours in water. The essential oil is used as a food flavouring, medicinally (the original source of Wintergreen oil used as a liniment for aching muscles) and in perfumery and toothpastes. In large doses it can be toxic. A good ground-cover plant for shady positions though it requires weeding for the first year or so. Forming a dense tuft-like carpet, it roots as it spreads and should be spaced about 45cm apart each way.


Safety/Cautions/Interactions:  

The pure distilled essential oil is toxic in large doses. If used orally may aggravate stomach ulcers. Do not use if allergic to aspirin. Avoid if less than 12. Topical use can cause contact dermatitis.
 
Sources:

http://eol.org/pages/582117/overview
http://www.pfaf.or/user/plant.aspx?latinname=Gaultheria+procumbens
http://commons.wikimedia.or/wiki/File:FountainSpringsWintergreen.png
http://commons.wikimedia.org/wiki/File:Koeh-064.jpg
http://commons.wikimedia.org/wiki/File:Gaultheria_procumbens_3.JPG