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April 2021 Newsletter

Denver Botanic Gardens 2021 Virtual Plant Sale

By: Tamara Kilbane

Denver Botanic Gardens will hold its spring plant sale online again this year beginning on April 27th at 10:00 am and ending at 4:00pm on April 29th. The preview sale is sold out due to high demand. Plant orders will be available for pick-up curbside from May 6th through May 9th on the top deck of the parking structure at the York Street location. A “leftovers” sale will be held for in person shopping for any remaining plants on May 10th and 11th.

The Aquatics division of the sale is offering an array of marginal plants again this year including Canna, Taro, Iris, Pickerel Plant, and many more varieties! Below is a list of the aquatic plants that will be for sale. Here is a link to a complete list of all the plants being offered for sale: https://www.botanicgardens.org/sites/default/files/file/2021-04/2021_SpringPlantSaleShoppingGuide.pdf. Many plants will sell out early, so if you see something you need for your pond this season, be sure to shop early. Also, don’t forget that DBG members will receive 10% off of all purchases during the sale!

Acorus calamus 'Variegatus'
Variegated Sweet Flag

Acorus gramineus 'Ogon'
Golden Japanese Sweet Flag

Alisma parviflorum
Spoonleaf Plantain

Bacopa carolineana
Lemon Bacopa

Caltha palustris
Marsh Marigold

Canna 'Australia'
Australia Canna

Canna 'Casey's Delight'
Casey's Delight Canna

Canna 'Chiquita Punch'
Chiquita Punch Canna

Canna 'Endeavor'
Endeavor Canna

Canna 'Erebus'
Erebus Canna

Canna 'Ermine'
Ermine Canna

Canna 'Napolean'
Napolean Canna

Canna 'Pacific Beauty'
Pacific Beauty Canna

Canna 'Panache'
Panache Canna

Canna 'Peach Delight'
Peach Delight Canna

Canna 'Pink Sunburst'
Pink Sunburst Canna

Canna 'Ra'
Ra Canna

Canna 'Stuttgart'
Stuttgart Canna

Canna 'Summer Breeze'
Summer Breeze Canna

Canna 'Sunrise Trumpeteer'
Sunrise Trumpeteer Canna



Canna 'Tony'
Tony Canna

Colocasia 'Elena'
Elena Taro

Colocasia antiquorum 'Illustris'
Imperial Taro

Colocasia esculenta 'Elepaio'
Elepaio Taro

Colocasia esculenta 'Pink China'
Pink China Taro

Colocasia esculenta 'Violet Stem'
Violet Stem Taro

Cotula coronopifolia
Brass Buttons

Cuphea ignea
Firecracker Plant

Cyperus alternifolius
Umbrella Palm

Cyperus percamenthus
Compact Giant Papyrus

Cyperus prolifer
Dwarf Papyrus

Darmera peltiphyllum
Indian Rhubarb

Dionaea muscipula
Venus Flytrap

Hipparis vulgaris
Mare's Tail

Iris ensata 'Anytus'
Anytus Japanese Iris

Iris ensata 'Hegira'
Hegira Japanese Iris

Iris ensata 'Melody'
Melody Japanese Iris

Iris ensata 'Purple Velvet'
Purple Velvet Japanese Iris

Iris ensata 'Yamata Ikoku'
Yamata Ikoku Japanese Iris

Iris versicolor
Blue Flag Iris

Iris versicolor 'Deep Rose'
Deep Rose Blue Flag Iris
Juncus effusus 'Spiralis'
Unicorn Rush

Limnobium spongia
American Frogbit

Lindernia grandiflora
Moneywort

Lobelia 'Pacific Beauty'
Pacific Beauty Lobelia

Lobelia siphilitica
Blue Lobelia

Menyanthes trifoliata
Bog Bean

Mimulus guttatus
Monkey Flower

Mimulus ringens
Lavender Musk

Pontederia cordata
Pickerel Plant

Pontederia lanceolata
Giant Pickerel Plant

Ruellia brittoniana 'Alba'
White Bells

Ruellia brittoniana 'Chi Chi'
Pink Bells

Rumex sanguineus
Bloody Dock

Sagittaria latifolia 'Bloom'n Baby'
Bloom’n Baby Arrowhead

Sagittaria montevidensis
Aztec Arrowhead

Saururus cernuus
Lizard’s Tail

Schoenoplectus tabernaemontani 'Albescens'
White Rush

Schoenoplectus tabernaemontani 'Zebrinus'
Zebra Rush

Thalia dealbata
Powdery Thalia

Thalia geniculata f. ruminioides
Red Stemmed Thalia

Annual Plant Swap

By: Dorothy Martinez

The Colorado Water Garden Society's Annual Plant Swap is on! Save the date, we will be hosting our Annual Plant Swap on Friday, May 21st at 7:00 pm. The Plant Swap will take place at the West Terrace area within the Denver Botanic Gardens.

It has been another interesting Colorado spring with frenetic temperature swings and hops between spring and winter. Hopefully you have noticed many of the plants in your pond are waking up from their winter nap. Maybe during those bouts of warm temperatures and sunny skies, you have also noticed many of your plants could be thinned and divided. If you have had a chance to do some cleaning up and dividing, save those divisions for the Plant Swap.

For directions and more details, keep a look out on our website, a future article in our May Newsletter, and our Facebook page.

CWGS 2021 Pond Tour & Picnic

By: Dorothy Martinez

Good news! It looks like we will most likely proceed with an in-person Pond Tour this year. We are very thankful to those members who have graciously agreed to open up their yards to fellow members for this year’s Tour. We may not have as many participants as in year’s past, but we have participants! We have tentatively scheduled Saturday, July 17th for this year’s Pond Tour.

More good news, we are also proceeding with plans to reserve a park shelter for the Annual Pond Tour Picnic that takes place after the Pond Tour. The difference this year will be all Picnic attendees will be expected to bring their own food/beverages for themselves and any of their guests. For this year’s Picnic, CWGS will not be providing food or beverages.

If all goes according to plan, the Pond Tour and Picnic will be held in the Northwest part of Denver, including Brighton, Northglenn, Thornton, Westminster, Erie, Louisville, and Lafayette. We are looking to host our Picnic in a park located in Lafayette. All plans hinge on COVID infection rates and local health guidelines from Boulder County. Obviously, if cases go up and Boulder County places more restrictions on events, we may need to adjust attendee numbers or cancel the Pond Tour and Picnic. We are very hopeful that with the onset of warmer weather and this event being held outside, we will be able to host one of our most enjoyable events of the year.

Things are still in the preliminary phase, so stay tuned in future editions of our Newsletter, our webpage, and our Facebook page for more details.

IWGS Plant Database, All New Searchable Listings


By: James Bennett

This article was reprinted with permission from the International Water Garden & Waterlily Society (IWGS).

We are pleased to announce the launch of the new IWGS Plant Database. This is fully searchable, by plant or hybridizer, with advanced filters to help you find that next plant for your pond - or help identify a plant you may already have.

It is two years since the launch of the first IWGS plant database, and while a major milestone at that time it was not without its problems, the complexities of integrating a custom database into our existing website proved to be difficult and limiting. Each upgrade to the website could cause problems with the functionality of the database.

So, following discussions during our 2019 symposium in France and with new committee member Sander Dekker volunteering to help with development, we started from the ground up to create a new user interface o n a different platform. The cost of the services required to run the database on this new platform have been covered through to 2030 thanks to a grant provided by Microsoft.

What’s new?

The basic search function allows you to find plants by plant name and/or hybridizer. With the advanced filters you can search for plants with characteristics such as flower color, species only, award winning plants, registered plants, or plants originating from a particular year. Together these search and filter tools can help you find that next plant for your pond - or help identify a plant you may already have.

We have also referenced plants from the Victoria Adventure http://www.victoria-adventure.org and Plants of the World online http://www.plantsoftheworldonline.org websites, and plant information listed from these sources has been appropriately credited under the source citation for each plant.

At the time of writing, we have 3,247 plant names and more than 1,371 photos of waterlily and lotus varieties. Our next update will include shallow water, submerged, and floating plants, to create your number one source for ALL aquatic plants!

Get involved!

Help us make it even better! Another new feature is the ability for you to upload your own photos to share with the world using the Photo Upload button available on each plant page. To use this feature, you will first need to register, which is easy, and can also be done through Microsoft, Google, or Facebook logins (please note login details for the Plant Database are different to your IWGS login). Once you have submitted your photo it will need to be verified by the committee before it will appear on the database, so please be patient if you do not see it straight away.

In the first week of the launch of the new Plant Database we received 500 unique visitors, 6,100 views, over 40 newly registered users and more than 250 new photos within the first 72 hours!

There is no completion date for this type of project, as new information becomes available it will be added, and we will continue to develop new tools and features over the coming months and years. If you have any feedback, ideas for future upgrades, or wish to report an error or omission within the database please email database@iwgs.org.

Thank you all for your support and photo submissions, please keep them coming! Visit at: https://plants.iwgs.org.

About the Author

James Bennett is the owner of Bennetts Water Gardens, Dorset, England, UK. He is on the IWGS Board of Directors.