Welcome to the Okanagan Xeriscape Plant Database

Please check back frequently as we continuously add plants and plant images to the database.

HOW TO USE THE PLANT DATABASE SEARCH

  1. Click on as many search categories as you wish to be included in your search. Multiple tick boxes may be selected in any category. Plants included in the search results will:
    Match all bloom months, bloom colours, foliage colours and special features that you have selected.
    Match any types, heights, spread, and water/light categories that you have selected.
    Note: Your search may be refined at any time by selecting or deselecting criteria.
  2. Click on the search button to get the list of plants that fit your criteria
  3. Click on a plant name from the search results to get the full details and plant photo.
  4. To begin a new search, click on "‘Start new search" at the top of the page.
  5. If you want information on a specific plant, type the name in the "Keywords" box and press enter on your keyboard.
  6. Search results will be available as a printable version without colour and images for your convenience.

CRITERIA USED TO SELECT PLANTS

All information provided is to the best of our knowledge through both personal experience and using reputable references.

Information about search categories

Latin name:

When buying a plant, it is wise to use the full Latin name to ensure you are getting the exact plant that you want because common names can apply to more that one plant. Often there are several varieties/cultivars of one species. For example, with the common name "Yarrow", Achillea is the Genus, millefolium is the species and examples of cultivars are "'Cerise Queen", and "Paprika" which have different colours and growth habits.

Type:

Plants in the database can appear in more than one category. For example a ground cover might also be a shrub or a vine or an ornamental grass. Plants designated as perennials, ground covers and grasses mostly die back with frost and re-grow from their roots the following spring. The foliage on those listed as evergreen does not die back during winter.

Height and Spread:

The figures given are an average. They will depend on the amount of moisture, the type of soil and the weather. For grasses, the height is when they are in bloom. Spring bulb height is when the plants are in bloom. They will die back to the ground after blooming which leaves room for other plants to grow.

Water:

On average, the Okanagan receives about 11 inches (28cm) natural precipitation annually. The amount of supplemental water a plant will need in the growing season will be affected by the type of soil it is growing in and whether or not the soil has been covered by mulch. The water recommendations shown in the database are for mulched, average, well-drained soil with good organic content. Plants in sandy soils will need a bit more water and plants in clay soils will do well with less than the suggested supplementation.
It is important to water deeply and less often so that water soaks down into the soil encouraging growth of deep plant roots as they follow the water. A deep watering would be an application of one inch. (Measure how long that takes by putting out tuna cans.) Most of the supplemental water is needed in the dry summer months. The suggested amount of supplemental watering per year is:
raindrop1 raindrop 0-3” (7.5cm)

3 raindrops2 raindrops 4”-7” (10-18cm)

3 raindrops3 raindrops 8”-11” (20-28cm)

Light:

Full sun: at least six hours of sunlight, preferably including the hot midday and afternoon sun.
Part sun: areas that receive sunlight in the morning and/or late in the day with shade or filtered light during the midday and afternoon.
Shade: areas that do not get direct sunlight but may have dappled sunlight from deciduous trees.

Light & Water:

Some plants will grow in more than one light condition. Generally their water needs are reduced in less sunlight. To reflect this we have combined the information for light and water in the plant profiles.

Zone:

The zone rating on the plants is the coldest zone they will survive in. For plants that need good drainage, being in sodden, wet soil may be more likely to kill them than cold temperatures.

Bloom months:

Bloom time is approximate and will vary with garden conditions as well as from year to year depending on the weather. If you want to find plants that bloom over a longer period of time, select all the months you want a plant to bloom in. For example, if you selected June, July, August and September, Purple Cone Flower (Echinacea) would appear on your list.

Colour:

Colours in the list are general, while colour descriptions in the plant profile are more detailed. You may select more than one colour. The search results will only include plants available in all the colours you have chosen.

Foliage:

More detailed foliage colour is given in the plant profiles. Burgundy includes red and bronze foliage; chartreuse includes yellow and lime green foliage; and silver includes blue, blue/green, grey/blue. Coniferous trees will appear in the evergreen search.

Special Features:

Edible– only plants known to be safe to eat have this designation.
Poisonous– plants other than those designated may also be poisonous. Please let us know if you have further information.
Deer-proof/resistant– in general plants with aromatic foliage, or hairy foliage/stems or sticky sap are deer proof. Deer do not usually feed on ornamental grasses. What deer eat varies from one year/season to the next, how much pressure we are causing in a given area by destroying their natural habitat, and how much easily accessible food there is in their territory. Take deer-proof lists from other areas with a grain of salt – your local resident deer may not have read that publication!!
Spreader/self seeder- These plants tend to produce lots of viable seed, but are easy to control by removing spent flowers before they set seed or by mulching after seed has dropped and before it germinates or by pulling out unwanted babies.
Invasive These plants are fast spreaders – generally by roots, sometimes also by excessive seeding. This quality can make them excellent choices for erosion control or a mass weed suppressing ground cover. Be aware of their habit and be careful of where you plant them.


We invite your comments on your personal experiences with any of the plants in the database. We also welcome information about other xeriscape plants that you have successfully grown in dry Okanagan conditions.