Horticulture Report: Fig Trees

Fig Trees: Pruning & Fertilizing

Prune fig trees between late February and early March, before new growth appears.

Prune young trees for shape and good scaffold branching.  A scaffold branch forms the main framework of the tree. Prune mature trees to maintain tree structure, health and easy harvest.

Pruning:

Do not remove more than 30 percent of the tree’s canopy in a given year.  Figs bear fruit on new wood, so over pruning will not only reduce fruit yields it also causes the tree to focus on foliage production. Over pruning can also cause a hormonal imbalance, which regulates its growth and fruit production.

Prune out dead, diseased, and crossing branches, cut back excessively long branches, and shape to retain scaffold branches.  Monitor pruning cuts for bacterial or fungal problems until they heal.

Fertilize:

Fertilize fig trees with an all-purpose fertilizer; a 10 -10 -10 ratio of nitrogen, phosphorus, and potassium. Spread fertilizer evenly around the tree, keeping it at least 18 inches away from the trunk. Water the tree well after applying fertilizer.

Young fig trees: For the first two years in early spring apply 1 ounce of fertilizer once a month through August. Do not apply after August.   

Mature fig trees:  Apply in the spring when new growth appears, fertilize with 1/3 pound of fertilizer per foot of height.

Enjoy the fruits of your labor!

Italian Honey Fig: A dessert Fig with a pale slightly tart chartreuse skin and sweet amber flesh. Dries well.

Article by: Carlotta Lucas, Ashland Garden Club board member

Horticulture Report: Red Twig Dogwood

Article by: Lynn Kunstman, Jackson County Oregon Master Gardener

Posted by: Carlotta Lucas, AGC Member

Horticulture Report: Dutchman’s Pipe

Plant Name:  Aristolochia californica

Common name:  Dutchman’s Pipe

Plant type:  Deciduous Vine

Height:  10- 15 (up to 20 feet), plant requires a trellis, or other vertical support.

Bloom Time:  Later winter/Early Spring  

Flower Color:  Flowers are pale Green with dark maroon veins. Flowers are shaped like curved pipes with a flared bowl.

Exposure:  Part Shade

Soil Requirements: Tolerates most soils   

Water Needs:  Somewhat drought tolerant, but likes moisture areas; in nature is grows in moist wooded areas, alongside creeks and streams.

Attributes: Heart-shaped leaves on woody stems. Musty odious flowers attract carrion-feeding flies & gnats for pollination; insects eventually escape after plant attaches pollen to them. Plant is host for native Pipevine Swallowtail Butterfly (Battus philenor). Aristolochia californica is the only food source of the Pipevine Swallowtail!  Dutchman ’s Pipe provides habitat for other beneficial insects.

Firewise:  Unable to determine

Native to: Sacramento Valley, Northern Sierra Nevada foothills, San Francisco Bay Area, Northern Inner California Coast Ranges, Southeastern Klamath Mountains

USDA Hardiness Zone: 8 -10

Report by: Carlotta Lucas, AGC Member

Photo of Flowers By: peganum from Small Dole, England – Aristolochia californica, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=47474436

Photo of Pipevine Swallowtail caterpillar by: Joanie Kintscher, AGC Member & Past President

Firewise Plants: Heartleaf Bergenia

Plant Name:  Bergenia cordifolia

Common name:  Heartleaf Bergenia

Plant Type:  Herbaceous Perennial

Plant Height:  12” – 14”

Plant Width:  12” – 18”

Bloom Time: May – June

Flower Color:  Pink/White

Exposure: Part Shade to Full Shade.

Soil Requirements: Average, Medium, Well-Drained Soil.

Water Needs: Medium

Fire Resistant:  YES – Zone 8 – Plant 30’+ from house.

Attributes: Green Leaves in Summer Change to Burgundy in the Fall; Showy Flower; Good Cut Flower; Deer Resistant; Tolerates Heavy Shade.

Uses:  Groundcover; Rock Gardens; Shaded Front-of-the Border; Edger.

Note: Remove All Damaged Foliage in Late Winter/Early Spring; Remove Spent Flower Stems; Spreads Slowly by Rhizomes .

Native to: Russia

Oregon Native:  NO

USDA Hardiness Zone: 3 – 8

Horticulture Report: Creeping Thyme

Plant Name:  Thymus praecox
Common name:  Creeping Thyme
Plant Type:  Groundcover
Plant Height:  1” – 4”
Plant Width:  6” – 18”
Bloom Time: May – August
Flower Color: Pink White, Purple
Exposure: Full Sun to Part Shade
Soil Requirements: Average, Dry – Medium, Well-Drained; Tolerates Rocky or Poor Soil.
Water Need:  Drought Tolerant Once Established
Fire Resistant: YES.  Plant 30’+ from house.
Attributes:  Leaves in Shades of Light to Dark Green Yellow, or Variegated; Deer Resistant; Attracts Bees/Butterflies.
Uses: Rock Walls; Between Pavers; Rock Garden; Path Edging.
Note:  Cut Back Stems to Maintain Plant Appearance; Susceptible to Root Rot in Poor Draining Soils.
Native to: SW & Central Europe; Greenland; Turkey
Oregon Native:  NO
USDA Hardiness Zone: 4 – 10

Report by: Viki Ashford, AGC Member

Photo Credit: Jason Hollinger, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons

Horticulture Report: Sedums

Plant Name:  Sedum species
Common name:  Sedum or Stonecrops
Plant Type:  Perennial Succulent
Plant Height:  2” – 12”; Varies Depending on Varieties:  Ground Cover Level to Upright
Plant Width:  6” – 24”
Bloom Time:  Summer, Fall
Flower Color: Pink, Red, White, Yellow (Depends on Variety)
Exposure: Full Sun to Part Sun
Soil Requirements: Loamy, Sandy, Well Draining.
Water Need:  Low; Drought Tolerant Once Established.
Fire Resistant: YES; 10” or more from house.
Attributes: Attracts Birds/Butterflies; Foliage in Shades of Green to Blue/Chartreuse to Pink; Deer Resistant
Uses: Rock Garden; Edging; Containers, Smaller varieties ground cover.
Note: Deadhead After Flowering to Maintain Shape & Size; or Leave Attractive Seed Heads for Winter Interest; Subject to Mealybugs, Scale, Slugs/Snails, Powdery Mildew.
Native to: Eastern United States
Oregon Native:  Some varieties of Sedum spathulifolium and other broadleaf stonecrop are native to Oregon
USDA Hardiness Zone: 3 – 10

Report by: Viki Ashford, AGC Member

Autumn Joy Sedum and Broad-Leaf Sedum Photos by: Carlotta Lucas, AGC Member

Sedum oreganum (Yellow flowers) photo by: Stan Shebs https://calscape.org/loc-california/Sedum%20oreganum()