Posts Tagged ‘drip irrigation’

Landscape Architects Help You Avoid Expensive Mistakes!

Sunday, June 14th, 2009

While I acknowledge that I’m the type of person who wants to know “everything” and research the “double hell” out of everything I do, there are many things I either don’t have time for or don’t have enough interest in to get down to the really fine details about.  Choosing the proper plants for a site specific micro-climate, integration of watering, nutrition, PH, soil weight, and drainage creates a complex matrix of possibilities that can make your head spin.

Having said that, probably like you since you’re reading this, when I do the research I want to buy as direct as possible.  But believe me when I say: make a conscious decision not to use a Landscape Architect for larger projects because you WANT to go through the learning process, or because you have already been through the school of hard knocks, not because you want to save money.  Mother nature is miraculous for making overwhelmingly complex systems naturally simple and available.  However, an extensive container garden or green roof is a totally artificial environment vs a back yard.  You are trying to mimic nature and chances are that over the long run you won’t save money on larger projects.  I don’t want you kicking yourself later.  There, somebody had to say that.

As in back-country powder skiing and mountain climbing, you don’t get all the information from a book.  It takes years of experience to understand local conditions and seasonal changes to stay alive. The same is true for your plants.  When property owners and “retail” customers of DeepStream Designs contact me about large planter projects directly we make a conscious effort to direct them to at least consider the services of a Landscape Architect.  Believe me, if you have even a medium-size project, the slight mark up they may put on products in addition to their fee is money well invested if you, or your project, are the type that can’t live with expensive and time consuming false starts.

Container Gardening: Unique Watering and Fertilizing Needs

Tuesday, April 28th, 2009

Container gardening has unique watering and fertilizing needs because the containers are closed systems.  The needs of moderate or larger installations are best met with simple drip irrigation and fertilization systems which require no electricity.  Hiding the feeder lines for aesthetic reasons is one of the key features of the containers I design for DeepStream Designs.

While most plants do best with a consistent soil moisture content, many need to dry out between water applications.  Of course, some plants require special over or under watering applications.  A multi-valve multi-line drip system can use automatic timers to achieve both effortlessly.

To simplify your watering, it is best not to mix plants that may need different types of watering, fertilizing or soil in the same container. 

While this concept can also be extended to root depth, in larger planters it can actually work quite well as trees or bushes with deep roots can benefit from the needs of flowers with shallow roots that dry out more quickly to be watered several times a day with a  topical water spray which can augment a deeper root drip application line fed by a line on a different timer.

Generally, I run at least two 1/2″ main lines to feed perimeter planters:  one for the deep-rooted plants watered by drip irrigation soaker hoses with emitters on 6″ spacings, and another with sprayer and/or misters that either hang from taller trees or bushes or stand on spikes. 

In every case, I use in-line micro-valves on every 1/4″ feeder line from the 1/2″ main line to tailor the water delivery of each line to the planter, as the micro climates of each planter may vary considerably depending on exposure to sun and wind.

Delivering micro-doses of fertilizers on a consistent basis precludes the trough and peak delivery of single monthly doses of liquid fertilizers or the irregular dosing provided by slow-release coated dry fertilizers that depend on rainfall to dissolve.  Plants do better with this type of consistent feeding.

An advantage of installing different main line circuits for different types of plants is that a fertilizer injector system can be installed upstream of the valves.  Running one valve at a time, you can meet the needs of different plant types with different types and proportions of fertilizers with just the flip of a switch.  

 A visit to Dripworks’ catalog will give you a good overview of the types of products available that make this very easy.  Here is a picture of my manifold setup, which along with the drip irrigation on 4 circuits, was installed in a single  afternoon:

drip irrigation control manifold