In Love with Lavender

Why we Love Lavender:

  • Scent/Fragrance
  • Color
  • Easy to Grow
  • Flowers can be enjoyed fresh or dried
  • Flowers can be used in crafts, cooking & medicinally
  • Thrives in poor soil
  • Drought tolerant
  • Attracts pollinators
  • Deer and rabbit resistant

Lavender has its roots in the Mediterranean Counties. So think in terms of full, intense, hot sun and rocky stony soil that’s not especially nutrient rich, but has good drainage. Southern Oregon has ideal conditions for growing lavender.

Most garden centers offer three major species of lavender:

  • Lavandula stoechas  (aka: Spanish Lavender) – Can be recognized by it cone-like spikes, it is usually the first to bloom in late March or early April. It has a strong camphor or piney scent. This pollinator friendly is not used in cooking, crafts or in oil production, but because it is the first to bloom, it has a place in the garden; it looks nice planted in mass and provides an early food source for bees and pollinators. If pruned it may re-bloom in August or September. Not as cold hardy as English or French lavenders.
  • Lavandula angustifolia (aka: English Lavender) – English Lavender is the scent most people associate with lavender. Its colors range from white, pick, blue to deep purple. English Lavender is used for fresh cut flower, dried flowers, potpourris, cooking, and for oil distillation.  English lavender can range in size from dwarf (12 inches), semi-dwarf (20 inches) and tall (46 inches).  Plants bloom May though June and are cold hardy.  Some varieties will re-bloom if pruned after flowering.
  • Lavandula X intermedia (aka French Lavender) – French Lavender is a hybrid of L. angustifolia and L. latifolia. French Lavender blooms in mid-summer. It is one the tallest of the lavenders and its long strong stems are good for using in crafts. French lavender produces more oil than L. angustifolia, but the quality is not as fine. Plants are cold hardy.

Guide to Growing Lavender

  1. FULL SUN – 6-8 hours of sun or more. Less than six plant may become spindly and leggy and with fewer blossoms and less scent.
  2. GOOD DRAINAGE- Lavenders tolerate poor soils, but they must have good drainage.  In areas of clay amend the soil to improve drainage. Or build raised beds, or berms using compost, sand and decomposed granite to produce optimal soil for lavenders.
  3. Water Infrequently – Lavenders are drought tolerant meaning they prefer dry conditions. Once the rains ends, water once in June, then every two weeks when temperatures reach high 90s-100s. Scratch the soil’s surface, or use a water gauge to determine if the lavender needs watering.  (Note: first year water more frequently until roots are established)
  4. Pruning – Harvesting flowers is not the same a pruning. Prune lavenders at least once a year to maintain size and shape. To prune cut back about 1/3 of the plant.
  5. The best time to harvest lavender is when the bottom flowers of each stem are just beginning to open. This is when the lavender is at its most vibrant and fragrant. Cut the flowers at the base of the stems near the foliage.

Mark your calendar:
Southern Oregon Lavender Festival
June 19th, 20th, and 21st, 2020

The following are some of the Lavender varieties developed, or identified, by Oregon Lavender growers:

  • Betty’s Blue,
  • Buena Vista,
  • Melissa,
  • Premier,
  • Royal Velvet,
  • Sachet,
  • Sharon Roberts,
  • Ana Luisa,
  • Jennifer
  • Goodwin Creek

Article by: Rosenelle Florencechild, Jackson County Master Gardener, and JCMG Lavender Garden’s Manager & Head Gardener

Viburnum ellipticum

Horticulture Report

Plant Name:  Viburnum ellipticum
Common name: Oregon Viburnum

Plant type:  Deciduous Shrub
Height:  3’ – 11’
Spread: 6’ – 10’
Bloom Time: May – June
Flower Color:  White
Exposure: Sun to Part Shade
Water Needs: Prefer semi-moist, but will tolerant dry
Attributes:  Supports Pollinators; Pest-eating insects & birds; 3-Season; Fall berries for birds. 
Interest: Showy flowers, Red leaves in fall and blue-black Berries  

Note:  Tolerates seasonal flooding & drought.  Grows along stream banks.
Uses:  As a Screen or Background Plant,  Use along high banks of creeks, margins of wet areas, and at edges of trees
Native to: Washington & Oregon west of the Cascades
Oregon Native: YES
USDA Hardiness Zone: 6-9

Report Submitted by: Viki Ashford

Oregon Native Plant: Dryopteris arguta (Coastal Wood Fern)

Plant Name:  Dryopteris arguta
Common name:  Coastal Wood Fern or Shield Fern
Plant type:  Fern
Height:  2’
Spread: 1’ – 3’
Bloom Time: NA
Flower Color:  NA
Exposure: Full sun, Partial Sun, Full Shade
Soil Requirements:  Tolerates Clay.
Water Needs:  Low
Attributes:  Deer Resistant; Host plant for Orange Tortrix Moths; Drought Tolerant; Evergreen.
Uses:  Ground Cover; Native Gardens;  Pollinator Garden; Naturalizing; Woodland Gardens; Shade Gardens; Border Planting; Slope Planting;
Native to: Pacific Northwest
Oregon Native: YES
USDA Hardiness Zone:  7 – 9

Report submitted by: Viki Ashford

Photo Resource: John Rusk from Berkeley, CA, United States of America [CC BY (https://creativecommons.org/licenses/by/2.0)]

NOTE:

Orange Tortrix Moths: The larvae of the Orange Tortrix feed primarily on blackberry, dewberry, raspberry, and grapes. They feed on any tender, exposed vine tissue, weeds, and in grapes on the vine. They enter the shoot clusters at bloom time and make webbed nests among the berries. They injure leaves and berry stems as well. In addition to this physical injury, they vector in disease organisms that introduce rot.

Horticulture Report: Coffeeberry

Plant Name: Rhamnus californica ‘Eve Case’
Common name: Coffeeberry
Plant type: Evergreen Shrub
Height: 6’ – 8’
Spread: 6’ – 8’
Bloom Time: Spring
Flower Color: Greenish White
Exposure: Sun or Shade
Soil Requirements: Will grow in most soils
Water Needs: Low Water Needs; Drought Tolerant
Attributes: It has dark green leaves on reddish stems. After flowering, berries follow that are first green then red and finally black when ripe. Fast growing shrub. Fairly deer resistant.
Note: High summer heat may cause fronds to brown by mid to late summer, particularly if good soil moisture is not maintained and/or plants are grown in too much sun.
Uses: Attracts Pollinators; Larval food source for Swallowtail Butterfly
Native to: North America
Oregon Native: NO- Native to California
USDA Hardiness Zone: 6-10

Report by: Viki Ashford

Photo /upload.wikimedia.org: Taken by Brofri [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)]

Horticulture Report: Helichrysum petiolare

Plant Name:  Helichrysum petiolarelicorice-plant1.jpg
Common name:  Licorice plant
Plant type: Annual
(Tender Perennial Zones 9-11)

Height: 6-9 inches
Spread: 1-3 ft
Bloom: White, but Insignificant
Exposure: Full Sun – Part Shade
Soil Requirements:  Average
Water Needs: Dry to medium
Attributes:   Dense trailing silvery leaves, Tolerates poor soil & drought
Notes: Good drainage is a must!
Uses:  Annual, Hanging Baskets, Containers, Rock walls, Annual ground-cover
Native to: Southern Africa
USDA Hardiness Zone: 9-11