If the North is completely closed, can plants be kept overhead or on the terrace?
Some part of the house will have an open North; plant there. Small pots can also be kept up in the North; there is no problem.
Related questions
If the North, the opportunity and attraction zone, is cut, how can it be balanced?
Extend it with the symbols and materials of the North element, with plants and many other items.
If the ground floor is fully built and the first floor covers only half the roof with the rest as terrace, is the upper floor marked separately?
No, take the whole, including the terrace. Every place you can walk in and access is included when taking the centre; only areas you cannot reach are left out. Zoning only the built half can mislead, for example making a heavy store room look as if it sits in the North when the North of the whole is open, which is good. Large balconies and terraces of 200 to 300 sq ft are counted too.
My Mercury is debilitated in the 4th house with an exalted Venus; will plants in the North cause a problem?
No problem at all. Flowering plants represent Mercury, so keeping them in the North strengthens a weak Mercury. Keep up good work such as paying for poor children's education and sharing knowledge.
A North window has its shutter kept closed. Can the shutter be removed and a jali (mesh) fitted?
Yes. The North results then start coming, though not fully; you get as much as is open. Through a window only air comes in, whereas people come in through the door.
A family with an N4 door has had only boys across generations. What can be done for a girl child?
N4, like N3 and W4, is a door that brings sons. Open an E2 door, which brings the birth of daughters. A home without a daughter is not a complete home.
A mango tree inside the boundary in the North-East is growing taller than the house. What effect will it have?
Only one tall tree is allowed in the North-East, the coconut, which draws cosmic energy from above and passes it down. No other tall tree should stand there. If one already exists and cannot be cut, plant energy-capturing plants such as tulsi in the North and plant tulsi all around the tree.