Geranium Seeds

Pelargonium hortorum

Cherry Geranium Seeds This unique center zoning is stable under all light conditions, creating a beautiful contrast to the stunning flower color. More >>

Item #A-255 | 15 Seeds | Price: $4.95 Qty:

Geranium Maverick Orange F1 Seeds Mavericks are prolific producers of huge, shatter free 5-6 inch flowerheads above lush, well-branched foliage. Mavericks are an outstanding performer in the garden, with many experts stating this is the best series for 4- or 6-inch containers. All of the Maverick selections we offer have all demonstrated tremendous heat tolerance, even in the Deep South. Grows 15-18 inches tall. More >>

Item #A-259 | 15 Seeds | Price: $4.95 Qty:

Geranium Maverick Salmon Confetti F1 Seeds Unique speckled pattern of salmon on salmon. It has been proven for excellent garden performance in trials. More >>

Item #A-257 | 15 Seeds | Price: $4.95 Qty:

Geranium Maverick Star F1 Seeds Attractive white edged with rose. This uniform-to-flower series features multiple stems and large flowers. More >>

Item #A-258 | 15 Seeds | Price: $4.95 Qty:

Geranium Salmon Seeds These geraniums are right on target for outstanding displays, with its beautiful show fully zoned, dark foliage edged in light green. More >>

Item #A-261 | 15 Seeds | Price: $4.95 Qty:

Scarlet Geranium Seeds These geraniums are right on target for outstanding displays, with its beautiful show fully zoned, dark foliage edged in light green. More >>

Item #A-254 | 15 Seeds | Price: $4.95 Qty:

Orbit Apple Blossom F1 Geranium Seeds Large blushing shades and white blooms with zoned foliage - this geranium is attractive from top to bottom. More >>

Item #A-1056 | 15 Seeds | Price: $4.95 Qty:

Orbit Red F1 Geranium Seeds Beautifully framing the pure red blooms are the large zoned foliage of this Orbit Geranium which is almost a breath-taker! More >>

Item #A-1060 | 15 Seeds | Price: $4.95 Qty:

Orbit Violet F1 Geranium Seeds Widely shaded in near-black against rich green, these leaves are a show stopper with enough to stand on their own as a foliage plant. More >>

Item #A-1064 | 15 Seeds | Price: $4.95 Qty:

Orbit White F1 Geranium Seeds Basal-branching yet compact, it manages to produce plenty of blooms and leaves on tidy 14-inch plants. As a early bloomer that will flower right up to frost in the garden, pots, or windowboxes. More >>

Item #A-1068 | 15 Seeds | Price: $4.95 Qty:

Tips on How to Grow Geranium Seeds

Germination

Expect radicle emergence in 1 – 3 days.

Cover: Cover seeds with a thin layer of medium sized vermiculite to maintain Moisture levels.

Media: • pH: 6.4 – 6.5 pH levels <6.0 may promote shoot tip abortion and allow sodium, iron and manganese to becoming toxic. Symptoms of nutrient Toxicity will exhibit itself on the lower leaves.

Light: Light is not necessary for germination. If utilizing a chamber, providing a light source of 10 – 100 foot candles (100 – 1000 lux) will improve germination and reduce stretch.

Moisture: Saturated (5) for day 1 – 3. On days 4 – 8 reduce to moist (3). Beginning day 9, reduce moisture further to medium (2). Geraniums have a high oxygen requirement at the root level.

Humidity: 100% until radical emergence then reduce to 40%.

Dehumidify: Provide horizontal airflow to aid in drying down the media through evapotranspiration, allowing better penetration of oxygen to the roots.

Temperature: 73°F (23°C). Thermodormancy, which causes erratic germination, is induced when temperatures exceed 76°F (25°C). Temperatures below 71°F (22°C) decrease the speed and uniformity of germination.

Geraniums are relatively easy to grow from seeds. However, geranium seedlings are slow growing. Geranium seeds should be sown in early to mid-February to produce flowering plants for spring. Flowering occurs approximately 13 to 15 weeks after sowing.

Soil less mixes, such as Jiffy Mix, are excellent germination media. During germination, damping-off of geranium seedlings can be a serious problem. Damping-off is caused by various types of fungi that attack the seedlings and destroy them. To discourage this, containers used for starting seeds should be clean and have adequate drainage. Previously used containers should be washed in soapy water, and then disinfected by dipping in a solution containing one part chlorine bleach and nine parts water.

Fill the container with the germination medium to within 1/2 to 1 inch of the top. Firm the medium lightly, water thoroughly and allow it to drain for a few minutes. Sow the seeds in rows 2 to 3 inches apart and cover with about 1/8 inch of medium. After sowing, thoroughly water the medium by partially submersing the container in water. When the surface becomes wet, remove the container from the water and allow it to drain. The medium also can be moistened with a soft spray of water from a rubber bulb sprinkler or similar device.

To ensure a uniform moisture level during the germination period, cover the container with clear plastic food wrap or a clear plastic dome. Set the container in bright light, but out of direct sunlight. Excessive heat buildup may occur if the covered container is set in direct sunlight. The temperature of the medium during germination should be 70 to 75 degrees F. With favorable temperature and moisture levels, the seeds should begin to germinate in seven to ten days.

Remove the plastic covering as soon as germination occurs. Place the seedlings in a sunny window or under fluorescent lights. Fluorescent lights should be no more than 4 to 6 inches above the seedlings and left on for 12 to 16 hours per day. Using a well-drained commercial potting mix, transplant the seedlings into individual containers when their first true set of leaves appears. Handle the small seedlings by their leaves since the small, thin stems break easily. Insert seedlings to the base of the seed leaves (cotyledons) when transplanting.

For best results, grow seedlings under fluorescent lights. (A standard fluorescent shop fixture with one 40-watt cool white and one 40-watt warm white tube works fine.) Plants grown in a window often become tall and spindly because of inadequate light. Ideal growing temperatures for geraniums are 70 to 75 degrees during the day and 60 to 65 degrees at night. Thoroughly water the geraniums when the soil surface is dry to the touch. If using a commercial potting mix containing a slow-release fertilizer, fertilization probably won’t be necessary. An application of a dilute fertilizer solution once every two weeks should be sufficient for those potting mixes that do not contain a slow-release fertilizer.

Harden or acclimate the plants outdoors for seven to ten days before planting into the garden. Initially, place the geraniums in a shady, protected location. Then gradually expose the plants to longer periods of sunlight. Plant the geraniums outdoors when the danger of frost has passed.