- Plant Info
- Hardy Bog Plant
- Blooms May to July
- Increases Natural Filtration
This small & hardy Blue Flag Iris has narrow green foliage growing up to 24" then crowned with delicate flowers that are light to deep-blue (purple and violet are not uncommon) with yellow-whitish markings at the base of the sepals. Blue Flag Iris blossom from May to July, is perfect for naturalizing as well as wetland filters. It is truly one of the easiest, showiest, and strikingly beautiful of all the native aquatic bog plant choices for the home gardener.
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Blue Flag Iris
|Plant Type||Bog Plant|
|Hardiness Zones||3 to 9|
|Growing Light||Full Sun To Partial Shade|
|Bloom Time||May - July|
|Plant Size||Vertical to 24"|
|Also Known As||Harlequin Blue Flag, Northern Blue Flag|
Mail Order: What To Expect
Plants you receive by mail need time to adjust. Blue Flag Iris will arrive in a 2" Pot (roots with some foliage). Upon arrival, they may not appear lush but given time & proper care, they will flourish!
The rhizome (root) of your Blue Flag Iris needs to be positioned in the aquatic planting media so that the cut end tuber is against the side of the planting container, not in the middle. This gives the root as much room as possible to spread across the planting container. Avoid using bagged potting mix and other lightweight soils because they will float and continually cloud pond water. Place planting container on the planting shelf in up to 6" of water depth.
Regular fertilization of your Iris will keep your iris blooming and growing well all season long. CrystalClear® Thrive™ Aquatic Plant Fertilizer or TetraPond® LilyGro™ Aquatic Plant Food or Laguna Plant Grow Fertilizer Spikes can be pushed into the soil at planting time and from April through August, following all manufacturers' recommendation for fertilizer application rates.
For best results, trim or prune as leaves and flowers begin to turn yellow or brown, remove them completely, discarding them to keep as much excess organic material out of water-body as possible.
All leaves and stems will begin to die off as winter arrives. If planted directly into a bog area, plants should be left alone after trimming any dead foliage to 1 to 2" above the top of the water. Plants that are on plant-shelves, in planting containers, should be trimmed to 1 to 2" and then gently lowered into the ponds deeper water. All plants submerged before winter must be brought back up as soon as the ice has permanently thawed, and before any plant growth occurs. In Zones 6 and warmer, most pond plants can tolerate being left in place without moving them at all.
What others are saying
"bog plant"Linda of addisoni, IL
This plant is doing great. Arrived in good condition unlike some of the other plants I orderedView entire review