scribb, i would recommend canna's terra line of nutrients...... they are simple to use and is a one part complete nutrient..... you would need terra-vega for vegging, and terra-flores for the flowering cycle.
you can use some additives as well if you want to go the extra mile, but you could do fine with just those 2 products.
here is a little more info on the terra nutes...
Canna Terra Vega product details:
Canna’s products for cultivating on soil are called Canna Terra which are available in Terra Vega and Terra Flores for the veg and flower phases respectively. Canna Terra is suitable for use on all soil and soil mixes but for best results should be used with Canna professional and Canna professional+ soils for which it is perfectly balanced and calibrated.
Canna Terra was the first nutrient on the market that was developed for cultivation on soil. Canna Terra remains unequalled due to its revolutionary Terra formula and the high standards that Canna sets during production. Terra has different nutrients for growth and flowering (vega and flores). This ensures that the correct doses of nutrients are available for each stage of the plant’s development.
Canna Terra Vega is a complete professional nutrient for fast growing plants during the veg phase of plant growth. Terra Vega ensures a vigorous plant with large vital shoots. Terra Vega is a single part nutrient that's easy to use, directly dissolves and is extremely suitable for growing either by hand or in ”run to waste” irrigation systems. Terra Vega has been developed to meet the plant’s requirements during the growing phase. Complete absorption of water and feeding from the start of cultivation is also guaranteed because Terra Vega is rich in nitrogen compounds that can be absorbed directly, high value EDDHA iron chelate's and trace elements.
Canna Terra Vega usage:
Start using Terra Vega once seedlings or cuttings are established. Use throughout the veg-phase then swap to Terra-Flores two weeks into the flower-phase.
To use Terra Vega simply add the nutrient to your water until the desired level is reached. To exactly measure the strength or EC of your nutrient solution get a nutrient truncheon. If you cannot afford one you'll have to go by the measurements on the bottle (which can be a little strong).
TERRA FLORES
In the brief but exuberant blooming period of a plant, it is vital that nutrients are directly available and properly composed. The preparation method of Terra Flores is adjusted to compensate for the binding effect of earth as a medium. Terra Flores also stimulates the development of flowers and contains all the nutrition that a plant needs during the blooming phase. For instance, plants need a considerably smaller amount of nitrogen during the blooming phase. On the other hand, the amount of potassium and phosphate needed is larger. Terra Flores is rich in these compounds and specially chelated trace elements that can be absorbed directly, guaranteeing a perfect bloom.