Forsythia viridissima koreana 'Kumson'
An absolutely gorgeous forsythia that greets you in the spring with a brilliant display of yellow flowers like most all forsythias, but this variety also gives you beauty long after the flowers of early spring are gone. New foliage is a bright green, maturing to a deeper, more hunter green color with delicate silver veination all throughout the leaves. Looks like they have been painted!! A very vigorous grower - can be trimmed to maintain desired shape & size. Can take anything from full sun to almost full shade, and can withstand a wide range of soil conditions. Looks stunning when planted in groups, both in the spring, as well as all season long.
Plant Facts & Specifications
4 - 6 ft
Moderate to fast ( 8" - 14" avg per yr )
5 - 9 ( if unsure of your zone, please use zone finder below )
Full to partial sun - much more tolerant of shade than most Forsythia varieties.
Average to slightly moist & fertile - mulching recommended
--Foliage Color & Texture:
Evergreen Broadleaf - Good sized leaves are very heavily serrated, and are a nice medium green in base color. Leaves are webbed with very detailed creamy white / silver vein markings - markings are much more pronounced on younger foliage, and will fade somewhat as foliage matures. Best foliage of any Forsythia!!
--Flower, Cone, Or Berry Facts:
Flowers - bright yellow tassel-like flowers appear at the very first sign of spring. Oftentimes Forsythia is the absolute first species in the landscape to
"wake up" from winter dormancy. Flowers generally last for at least 2-4 weeks.
--Diseases / Insects:
No serious problems, but the following have been noted to occur with
Forsythia on rare occasions: Crown gall, leaf spot, Japanese weevil, northern root-knot nematode, and spider mites.
3 ft apart recommended for typical hedge planting
--Deer Resistance Rating:
Lowest Resistance [ 1 - 2 - 3 - 4 - 5 - 6 -
- 8 - 9 - 10 ] Highest Resistance
--Fertilization / Feeding:
< For maximum health & hardiness, we highly recommend a good grade granular ( preferably organic ) fertilizer / plant food for use with all of our plant species. We personally use, and recommend the Espoma line of organic plant foods, as they are super effective yet gentle enough to use on even the most delicate of evergreen species where fertilizer burn would normally be a major concern. However, a water soluble type plant food (Miracle Gro, or equivalent ) are also acceptable options. Other granular fertilizers with a 6 - 12 - 12, or 10 - 10 - 10 ratio can also be used - but we suggest using them at 1/2 - 3/4 strength to avoid any chemical burn issues to the root system of the plants. Best to fertilize in early spring, and again in mid fall - avoid feeding standard chemical fertilizers during hot summer months, and directly after transplanting. The Espoma Organic Plant Foods may be used at anytime.