Saturday, 28 April 2018

Due to all the rain,
NAGA's Annual Spring Clean-up
has been moved to
Saturday May 5
9 a.m. - noon
Volunteers needed - many hands make light work!

Friday, 27 April 2018

NAGA's Annual Spring Clean-up
this Saturday (April 28)
9 a.m. - noon
Volunteers needed - many hands make light work!
(Rain date - April 29)

Friday, 6 April 2018

NAGA Annual General Meeting

This is a friendly reminder that the NAGA annual general meeting will take place on
Saturday April 7 at 1pm at the Tanglewood Community Centre
located at 30 Woodfield Dr, Nepean, ON K2G 3Y5.
All gardeners are encouraged to attend!
We look forward to seeing you there! :)

Saturday, 3 February 2018

The passing of member Rosaleen Dickson

The notice of Rosaleen Dickson passing is posted in the Ottawa Citizen on January 31,2017.

Thoughts from members:
Rosaleen and her husband David were active members of the NAGA Association in the early days of our Association.  Their contribution can be seen in the History of the Nepean Garden Association from 1991 to 2002 by  Ian A. Reid.
The Dickson's contributed greatly to the success of our Association. I knew both Rosaleen and David  on a personal level. They were fine people.
Ian Reid
She and her husband David were part of those hard-working originals who laid down some solid foundations for making NAGA  the great gardening place it is today.
Jim Koss

Wednesday, 11 October 2017

Agri 150 - Good Food Celebrations!

On Saturday, October 14th, between 11am-3pm, eaters from across Ottawa are invited to Agri 150 - Good Food Celebrations at Just Food Farm, with a special invitation to all past and present community gardening members, contributors, friends & family.
What are we celebrating? 
This is the 20th year of the Community Gardening Network (CGN)! In 1997, four communities came together to help start gardens and formed the initial Community Gardening Network, a Network devoted to resource sharing & collaboration on issues impacting its members. These gardens are still gardening today: Gloucester Allotment Gardens Association, Carlington Community Garden, Strathcona Heights Community Garden and Bytown Urban Garden (BUGs).  
Today we are proud to say that the CGN has 94 garden members all over Ottawa.
To get to this number, Mayor Watson and City of Ottawa gave additional funds towards a community garden legacy project with the goal to start 20 new gardens in the past three years in time to celebrate the 150th birthday of Canada.  Our community has achieved this all together!
This is truly something we can be proud.  We’re very proud of how community gardening has taken off over the last 20 years.  We’re proud that these projects are community owned & community led & we want to continue these traditions for the next 20 years.  As a Network we’ll continue to welcome more individuals, communities & gardens to be part of our shared growing gardening community. 
Let's celebrate Good Food together!
Please tell us you’re coming at

Tuesday, 19 September 2017

Go Fund Me Campaign for the Ruiter family

We are sure that many of you have heard the news about the terrible barn fire that destroyed the barn and dairy herd of a local Ottawa family on September 8, 2017. We are sad to report that this barn belonged to friends of NAGA. John Ruiter and his family have been delivering straw to NAGA for a number of years. We wish to draw your attention to the Ruiter Family Barn Fire Recovery fundraising page on in case any members feel inspired to make a donation to help the family out in their time of need.

NAGA board of directors 2017

Tuesday, 25 July 2017

Food Bank at Debra Dynes House

This year we are asking members to please consider giving some produce from your garden to the food bank at the Debra Dynes House. Dynes House supplies food to over 1,000 of the working poor families and new refugees living in our neighbourhoods. Collections will be made for the food bank starting July 25th. A notice has been posted at the garden and a box for collections is in the garden shed. Ron Rogers has organized this initiative, but is moving soon and is looking for some volunteers to help collect the food from the sheds and/or make deliveries to Dynes House on a regular basis.

Annual plot 3 has been dedicated to the Food Bank. The garden has been planted and weeded. All members are encouraged to help weed and water this garden should they have the time. The root crops will be harvested in the fall, but the kale and swiss chard will have to be harvested on an ongoing basis.

If you are interested in helping with this initiative please contact Ron Rogers by email ( Let's all step up and help those in need!

Friday, 23 June 2017

Thank-you for your help with the clean up last Saturday!

The NAGA board of directors would like to thank everyone who came out to help us clean up the winter storage area last Saturday! It was really wonderful to have so many helping hands to fill up the two dumpsters we rented for the occasion. We really appreciate your help!

Monday, 5 June 2017

A Guide for Watering the Newly Planted Shrubs (2017)

A Guide for Watering the Newly Planted Shrubs, by Ian A.Reid

This article specifically refers to the 10 shrubs that were planted near the picnic tables in the spring of 2017. The results of the recommendations can be used for other nearby plants (shrubs) as well.

These shrubs evolved over centuries without human interference. So the question is when should humans interfere with Mother Nature?

People cannot control the amount of rain for this area or any other area. If the soil is waterlogged for an extended period, the plants die. e.g. when a reservoir is created, the trees in the reservoir die for lack of oxygen. Likewise. If the roots of shrubs are waterlogged for an extended period, the shrub dies for lack of oxygen. The other extreme condition is drought over extended periods of time. Here it takes a long time for the plants to die because through evolutionary mechanisms the plant prolongs its life. So people should only intervene with Mother Nature when the normal rainfall amounts for the area are in a deficit situation except for newly planted plants when extra water is beneficial.

So what is the normal rain fall amount for this area? For this, we find that the Environment Canada’s Macdonald – Cartier station is the closest weather station to the site where the shrubs are planted.

The Government of Canada lists the monthly precipitation data for the Macdonald – Cartier Weather station in millimetres (mm), are as follows:

Feb. Mar. April May June July Aug. Sept. Oct.
Precipitation (mm)
54.3 64.4 74.5 80.3 92.8 91.9 85.5 90.1 86.1
Average Weekly
Precipitation (mm)
13.6 16.1 18.6 20.1 23.2 23.0 21.4 22.5 21.5

This is how roots behave after, say, a 20 mm rainfall. Because of gravity the water table gradually lowers. As the water table lowers, the roots follow the water table down to obtain nourishment. This is the normal action of roots and this regime develops a strong deep root system. When gardeners water their plants every day, the roots stay near the surface because they have lots of water. This is not a normal situation, and the plant develops a shallow root system.

I’m going to plant a rain gauge in the middle of the newly planted shrubs. The gauge will be read Fridays of each week. If there is a water deficit compared to the normal precipitation as indicated from the table above. Water will be added to make up for the deficit. By following this regime the shrubs should develop a strong deep root system. This regime of watering to make up for any deficit is especially important during the first year after transplanting. It’s not so important in subsequent years because of the strong roots developed in the first year after transplanting. If in the second year after transplanting a mini or major drought occurs, the plants should definitely be watered to at least normal amounts of water as indicated by the table above.

Now, let’s solve a hypothetical example. The rain gauge reading on a Friday showed that there is a 5 mm deficit of rain when compared to the Macdonald – Cartier weather station. This means that 5 mm of water has to be added to each of the 10 shrubs to bring the water table up to the recommended level. Since Environment Canada lists precipitation in millimeters (mm), we’ll do the calculations in mm.

For each shrub, we must add the following amount of water by bucket or hose:

Each plant is planted within a circular area covered by mulch. This area is to be watered and we need to first determine the circle area. The area of a circle, A, equals Pi times the circle’s Radius, R, squared. Pi is a constant that is close to 3.1416. This is written A = Pi x R x R. The circle diameter was measured to be 4 feet (or 122 cm). Therefore the circle radius is half that (61 cm). Because rainfall is measured in millimetres convert this to 610 mm. The resulting circle area is 3.1416 x 610 mm x 610 mm = 1,700,000 mm2. We’re adding water, 5 mm in depth so the volume is 1,170,000 mm2 x 5 mm = 5,845,000 mm3 (cubic mm). Let us just say it is 5.8 million mm3. Now, 1 litre contains 1 million mm3. To determine how many litres of water are needed, take the amount needed, 5.8 million mm3, and divide it by 1,000,000 mm3/litre. Conveniently, the answer is 5.8 litres (notice, it is the same number of litres as the number of millions mm3). Further simplify buy rounding up 5.8 to 6 litres. The calculation indicates that 6 liters of water distributed equally within the circle has to be added to each shrub to bring the water table up to normal.

This water can be added by bucket (pail) or hose. If the water is added by a bucket, simply add 6 liters of water in the bucket and spread it carefully to each shrub.

If the water is added by hose, the hose must be calibrated first as follows:
Step 1. Choose a close by hose and stretch it out as it will be used to water the shrubs. The same configuration must be used every time the shrubs are watered to maintain the same calibration. This calculation assumes that the water pressure at the source remains constant day after day. i.e. turn the tap the same number of full turns each time, or just open it to maximum each time.
Step 2. Record the time it takes to fill, say a 20 liter bucket (pail). Any watch that can measure seconds can be used to measure the time. Let us say that with our tap opened to the maximum it took 32 seconds to get 20 litres of water.

Now, from the example above, we must calculate the time it takes to fill a 6 liter container.

The calculation: 20 liters = 32 seconds (time to fill a 20 liter pail). That is a rate of 32 seconds per 20 litres - this is 32s/20litre = 1.6 seconds/litre. If 6 litres are needed, multiply this number by the rate. i.e. Time to get 6 litres = 6 liters x 1.6 sec/litre = 9.6 seconds. That is pretty close to 10 seconds, so say it is 10 seconds.

If the hose has a different configuration, even a slight kink in the hose makes a difference in the calibration, than in Step 1, the hose must be recalibrated. Hopefully, a nozzle will be on the hose that will deliver a gentle shower of water on the shrub, a hose without a nozzle under high pressure could damage the area around the shrub. This kind of watering is a NO-NO.

I must confess that I’ll probably add a little more water to each shrub as indicated by the calculations above to take care of evaporation.

When this planting and watering regime is followed, these shrubs should thrive for their whole life span that could be for up to 50 years.

Comments are welcome.

Take care,
Ian A. Reid BSc (f) UNB ‘49

Conversion factors:
1 inch = 2.54 cm
1 foot = 12 inches
1 cm = 10 mm

Government of Canada weather station at the Macdonald –Cartier International Airport

The author wishes to thank Craig Hamm for suggestions and assistance with the final edit.