|
|
|
| O | |
| Obelisk | A man-made structure tapering downwards, used for climbing plants. |
| Offset | A small bulb or plant growing from the side of the parent. |
| Onion hoe | A small hoe used especially for onions as it can be held in one hand. |
| Open-pollenated | Naturally pollenated seeds. |
| Organic | A word that has grown in stature and is now not just the word that is used for natural fertilizer and pesticides. |
| Ornamental | A plant grown because it is highly decorative. |
| Overpotting | Plants should not be repotted into a pot that is too big because the soil becomes either stale or too wet and cold. |
| Over-winter | How a plant will survive through the winter depending on where it is placed. |
| Oxygenating plant | Plants that add oxygen to the water, keeping it alive and not stagnant. |