Oregano Growing Information
The
name "oregano" is more accurately applied to a flavor than to
a plant, and there are two varieties that you can grow for seasoning and
call oregano, which is most commonly used as a spice in a dried form. Origanum
vulgare is typically grown; it's hardier and easier to propagate
than the alternative, Origanum heracleoticum—also known as wild
marjoram is another commonly available species.
| Temperature | |
| Germination | 60-70F |
| For Growth | Cool |
| Soil and Water | |
| Fertilizer - Not necessary | |
| pH | 6.0-8.0 |
| Water | below average |
| Measurements | |
| Planting Depth | 1/4" |
| Root depth | 14"+ |
| Height | 24 - 30" |
| Width | 20-24" |
| Space between plants | |
| In beds | 12" |
| In rows | 12" |
| Space between rows | 18-24" |
| Companions | |
| Companions: Cucumber, melons, pepper, pumpkins, squash | |
| Incompatibiles: broccoli, cabbage | |
Serving suggestions: Oregano is essential ingredient in many italian dishes, it is the most common spice for pizza, and in general goes well with any tomato based dish, it also combines well with basil. Try it with cooked vegetables, potato salad, fowl, stuffing, soups, scrambled eggs and omlets.
Where to Grow Oregano
Oregano can be grown anywhere in the United States from root divisions or seed planted early in spring. In general, it is a sprawling herb and is not well suited for growing indoors.
Soil for Oregano
Like most herbs, oregano prefers light, well-drained, slightly alkaline soil with full sun. Just like most herbs, a rich and moist soil weakens the flavor and aroma. In addition, oregano should not be fertilized if grown for its flavor or aroma. Fertilizing oregano will allow the plant to produce an abundance of flavorless foliage.
Planting Oregano
When to plant Oregano-
Start seedlings 6-8 weeks before the last frost date for your area. Plan
on planting the seedlings outside on the average last day of frost, when
they are about 3" high. They can be planted outdoors earlier with
some sort of protection from the cold.
How to plant Oregano-
Seeds have a tendancy to germinate slowly, and in addition, expect at least
25% of the seeds to be duds. They will germinate more consistantly in
controlled conditions, such as a windowsill or green house. You shouldn't
plan on storing your seeds for an extended period of time, as the germination
rate will decline rapidly with additional storage time. Seeds can be
directly planted in the ground in spring, or started indoors in seed
flats to be transferred outdoors when ready. Don't forget to harden off
young seedlings for a week or so to get them acustomed to the outdoor
temperature variation and sunlight intensity.
Oregano has a spreading root system and can also be propagated by cuttings. Cuttings
are typically taken in late spring once the leaves are firm enough to prevent
wilting when placed in sand. Place cuttings in a well protected area, and
ensure the roots do not dry out. Once the cuttings establish a root system,
they can be transferred outdoors into a pot, or directly into the ground.
How Oregano Grows
Oregano is generally considered as a perennial herb, with creeping roots, branched woody stems and slightly hairy greyish-green leaves oval in shape. It grows to about 2-2.5 feet tall and 2 feet wide, and produces small blooms of pink, white, or purple on tall stems from late July until September. Once each flower matures, it will produce four small seed-like structures.
Culturing Oregano
Keep oregano plants on the dry side. Newly planted oregano may require some irrigation, but once established it will require very little water. As with most other herbs, fertilizing will reduce the production of essential oils, which gives the distintive flavor and aroma of oregano. It should not be fertilized at all if grown as a culinary herb. Old woody branches that becomes leggy (more stem than leaf) should be cut out at the end of winter and plants should be replaced every five years or so to prevent legginess. The lifespan of oregano is about five or six years and usually one harvest is done in the first year and two in the following years.
| Harvest | |
| The leaves can be cut once the plant reaches a total height of about 6". Cut the stems down to a few inches above the soil. To prolong the harvest, cut the flower buds off as they appear. |
Harvesting Oregano
Storage
Requirements |
||
| Oregano is most commonly used dried. Hang bunches, dry in a food dehydrator, or slow oven (150F). Remove leaves, and store in air tight containers away from direct sunlight. | ||
Method |
Taste |
|
| Fresh | excellent | |
| dried | good | |
| frozen | good | |
Harvesting the leaves and stem tips should start when plants are at the flowering stage, starting about 4 inches 10 from the ground. It is ready to harvest once the flowers begin to appear. The production of essential oil declines after flowering, so either harvest before that or cut the flowers off to extend the growing period. To harvest the entire plant, cut the stems a few inches above the ground.
If harvesting for fresh use, let the plant grow until it is about 6" high,
then pinch off the tips of stems to use for cooking. This will also encourage
fuller foliage production.
Pests
Oregano deters pests in general and does not suffer any serious problems with pests.
Disease
Oregano as a species does not typically suffer from disease.
