Scottish Rock Garden Club Forum

General Subjects => Flowers and Foliage Now => Topic started by: Peter Korn, Sweden on October 26, 2008, 11:22:32 AM

Title: WET Sandbed
Post by: Peter Korn, Sweden on October 26, 2008, 11:22:32 AM
3 years ago I made a sandbed in my stream. Peatblocks on the steap side and the rest is sand (0-8mm), covered whit gravel. In the summer itīs sunny and dry but always cold and moist. In the winter itīs very wet and it gets flooded when we have some heavy rain. It has worked very good and Iīm able to grow a lot of plants that was difficult for me before.
Title: Re: WET Sandbed
Post by: Carlo on October 26, 2008, 10:52:17 PM
Fantastic Peter. I especially liked the Raoullia...amazing!
Title: Re: WET Sandbed
Post by: ranunculus on October 26, 2008, 10:59:45 PM
Very, very impressive Peter - does this particular bed ever freeze in this waterlogged state?
Have you considered extending it downstream?
Title: Re: WET Sandbed
Post by: Lesley Cox on October 27, 2008, 03:12:26 AM
I think you'll need to explain a little more Peter. Is this bed in mid stream and does the stream actually flow or seep through it?
Title: Re: WET Sandbed
Post by: Peter Korn, Sweden on October 27, 2008, 08:17:52 PM
I made a very beautiful picture to show how the bed is built. The water is seeping through it all the time. The water keeps the bed cold in the summer and heats it in the winter. When we have a cold spell the bed gets covered with ice and when we have a lot of rain it gets flooded. Last autumn the plants were in water for 3 months and didnīt get any damage.
There is a lot of different plants that really loves this conditions. Ranunculus glacialis, Petiolaris Primulas, Different Androsace,vandellii, delavayi, marpensis, microphylla ...., Saxifraga candelabrum, S. bryoides, Diapensia lapponica, Oxygraphis polypetala, Lobelia linneoides, Primula scotica, deflexa, nana, graminifolia, gemmifera ...., Ourisia alpina, caespitosa and O. Snowflake are some of the plants that I have in this bed. Some of the small Primulas are almost weedy in this conditions.
I have built a lot of different wet sandbeds the last 2 years. Around the stream, in the ponds and in the boggy area. And there will bee many moore.
Title: Re: WET Sandbed
Post by: Maggi Young on October 27, 2008, 08:32:38 PM
Excellent, picture, Peter!!   Very interesting concept from you, as ever!!

Regards to Stellan and Gerry, by the way!! ;) 8)
Title: Re: WET Sandbed
Post by: Carlo on October 27, 2008, 09:38:48 PM
Agreed Maggi, most interesting Peter...

The diagram makes it seem as if the water goes THROUGH the sand and then into the peat, yet your photos clearly show the water running over the top of everything--creating a small waterfall effect. Does it do this only in times when water is abundant? Many people PUT waterfalls in their gardens where a bed of this nature would work wonderfully. More details please...
Title: Re: WET Sandbed
Post by: Lesley Cox on October 27, 2008, 09:51:04 PM
Thank you Peter. Good to see Gerry again, keeping his hooves cool. :)
Title: Re: WET Sandbed
Post by: Peter Korn, Sweden on October 28, 2008, 09:12:42 PM
Carlo, the waterfall is only after heavy rain. Normally itīs dry. The water goes through the bed and the surplus water goes around the bed in a small stream.
I made a new sandbed a month ago with the stream on the left side. After rain there is also a stream on the right side. This is the coldest place in my garden. The water cools the bed in the summer. A lot of different species, totaly more than 1200 plants.
Title: Re: WET Sandbed
Post by: Katherine J on October 29, 2008, 07:50:23 AM
This is beautiful!!! :o :o :o
Title: Re: WET Sandbed
Post by: Ian Y on October 29, 2008, 10:00:39 AM
Absolutely fantastic Peter, many of the Raoulias that I saw in New Zealand were growing in the gravel beside rivers that would flood with heavy rain - just like you have created.

What an exciting garden - you have developed so much since I was last over a few years ago that I think another visit is coming on - in the mean time keep the pictures coming.

Title: Re: WET Sandbed
Post by: Paul T on October 29, 2008, 10:06:28 AM
Wow, Peter.  Spectacular.
Title: Re: WET Sandbed
Post by: Luc Gilgemyn on October 29, 2008, 01:33:49 PM
Great new creations Peter !  :o  Marvelouss to see how you are getting along.

Everybody,
I had the tremendous pleasure to visit Peter's garden earlier this year and it was just as wet as it looks now...  ;) but I can tell you : it was unbelievably interesting !  This man literally moves mountains  ;D .... (and knows how and what to plant them with)

Title: Re: WET Sandbed
Post by: WimB on October 29, 2008, 03:53:10 PM
Peter, that is very impressive.
Title: Re: WET Sandbed
Post by: Paul T on October 30, 2008, 01:34:34 AM
Peter,

You're giving me ideas.  :o  I had an area that I was going to put in a small "creek bed" type thing, but due to our water shortages and how much evaporation happens from those (and the algae growth which is inevitable) I have never done it.  Making it a "wet bed" with the water flowing through the soil profile might work out really well, particularly with some of the Primulas etc which want sun but constant moisture...... now you've got me thinking of that instead.  I'd installed the pipe under the area and already have the pond liner for under the "creek bed", still there waiting for usage.  The wet sand bed might just work out well in the area.  Now just need the time to make it!  ::)

Thanks for the inspiration. 8)
Title: Re: WET Sandbed
Post by: Peter Korn, Sweden on November 04, 2008, 04:51:59 PM
Paul,
I think that will work very good. Use some very coarse sand in the bootom to make it easier for the water to float through the bed.
Good luck
Title: Re: WET Sandbed
Post by: Hans A. on November 05, 2008, 12:20:25 PM
Thanks Peter,

your sandbed is really very interesting  :D- don`t you have any problems with erosion as the waterpreasure might be very high?
 ...and Happy Birthday !

All the Best, Hans
Title: Re: WET Sandbed
Post by: Peter Korn, Sweden on November 05, 2008, 02:55:49 PM
Thanks. I have celebrated with a hole day of digging. Now itīs time for a nice dinner.
Maybe when the bed is new.
When the peatblocks are wet they are very heavy and can take a lot of preasure.